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Finding the Fourth Proportional to 263,966.70, 396,023.73 and 86,598.46

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Solution

The fourth proportional to 263,966.70, 396,023.73 and 86,598.46 is: 129,921.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,966.70 : 396,023.73 = 86,598.46 : x
  2. Step 2: Convert to fraction form
    263,966.70/396,023.73 = 86,598.46/x
  3. Step 3: Cross multiply
    263,966.70x = 396,023.73 × 86,598.46
  4. Step 4: Simplify right side
    263,966.70x = 34,295,045,141.46
  5. Step 5: Solve for x
    x = 34,295,045,141.46/263,966.70
  6. Step 6: Final answer
    x = 129,921.86

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