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Finding the Fourth Proportional to 206,906.91, 310,354.23 and 57,156.21

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Solution

The fourth proportional to 206,906.91, 310,354.23 and 57,156.21 is: 85,732.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,906.91 : 310,354.23 = 57,156.21 : x
  2. Step 2: Convert to fraction form
    206,906.91/310,354.23 = 57,156.21/x
  3. Step 3: Cross multiply
    206,906.91x = 310,354.23 × 57,156.21
  4. Step 4: Simplify right side
    206,906.91x = 17,738,671,544.27
  5. Step 5: Solve for x
    x = 17,738,671,544.27/206,906.91
  6. Step 6: Final answer
    x = 85,732.62

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