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Finding the Fourth Proportional to 13,954.17, 20,931.92 and 4,092.63

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Solution

The fourth proportional to 13,954.17, 20,931.92 and 4,092.63 is: 6,139.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,954.17 : 20,931.92 = 4,092.63 : x
  2. Step 2: Convert to fraction form
    13,954.17/20,931.92 = 4,092.63/x
  3. Step 3: Cross multiply
    13,954.17x = 20,931.92 × 4,092.63
  4. Step 4: Simplify right side
    13,954.17x = 85,666,520.14
  5. Step 5: Solve for x
    x = 85,666,520.14/13,954.17
  6. Step 6: Final answer
    x = 6,139.13

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