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Finding the Fourth Proportional to 85,663.44, 128,479.68 and 23,319.36

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Solution

The fourth proportional to 85,663.44, 128,479.68 and 23,319.36 is: 34,974.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,663.44 : 128,479.68 = 23,319.36 : x
  2. Step 2: Convert to fraction form
    85,663.44/128,479.68 = 23,319.36/x
  3. Step 3: Cross multiply
    85,663.44x = 128,479.68 × 23,319.36
  4. Step 4: Simplify right side
    85,663.44x = 2,996,063,910.60
  5. Step 5: Solve for x
    x = 2,996,063,910.60/85,663.44
  6. Step 6: Final answer
    x = 34,974.83

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