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Finding the Fourth Proportional to 85,041.72, 127,553.94 and 28,117.08

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Solution

The fourth proportional to 85,041.72, 127,553.94 and 28,117.08 is: 42,172.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,041.72 : 127,553.94 = 28,117.08 : x
  2. Step 2: Convert to fraction form
    85,041.72/127,553.94 = 28,117.08/x
  3. Step 3: Cross multiply
    85,041.72x = 127,553.94 × 28,117.08
  4. Step 4: Simplify right side
    85,041.72x = 3,586,444,335.30
  5. Step 5: Solve for x
    x = 3,586,444,335.30/85,041.72
  6. Step 6: Final answer
    x = 42,172.76

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