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Finding the Fourth Proportional to 266,022.55, 398,945.31 and 86,065.24

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Solution

The fourth proportional to 266,022.55, 398,945.31 and 86,065.24 is: 129,069.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,022.55 : 398,945.31 = 86,065.24 : x
  2. Step 2: Convert to fraction form
    266,022.55/398,945.31 = 86,065.24/x
  3. Step 3: Cross multiply
    266,022.55x = 398,945.31 × 86,065.24
  4. Step 4: Simplify right side
    266,022.55x = 34,335,323,852.02
  5. Step 5: Solve for x
    x = 34,335,323,852.02/266,022.55
  6. Step 6: Final answer
    x = 129,069.22

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