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Finding the Fourth Proportional to 85,256.20, 127,893.90 and 26,091.40

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Solution

The fourth proportional to 85,256.20, 127,893.90 and 26,091.40 is: 39,140.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,256.20 : 127,893.90 = 26,091.40 : x
  2. Step 2: Convert to fraction form
    85,256.20/127,893.90 = 26,091.40/x
  3. Step 3: Cross multiply
    85,256.20x = 127,893.90 × 26,091.40
  4. Step 4: Simplify right side
    85,256.20x = 3,336,930,902.46
  5. Step 5: Solve for x
    x = 3,336,930,902.46/85,256.20
  6. Step 6: Final answer
    x = 39,140.04

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