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Finding the Fourth Proportional to 357,726.72, 536,588.96 and 91,487.28

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Solution

The fourth proportional to 357,726.72, 536,588.96 and 91,487.28 is: 137,230.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,726.72 : 536,588.96 = 91,487.28 : x
  2. Step 2: Convert to fraction form
    357,726.72/536,588.96 = 91,487.28/x
  3. Step 3: Cross multiply
    357,726.72x = 536,588.96 × 91,487.28
  4. Step 4: Simplify right side
    357,726.72x = 49,091,064,428.43
  5. Step 5: Solve for x
    x = 49,091,064,428.43/357,726.72
  6. Step 6: Final answer
    x = 137,230.63

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