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Finding the Fourth Proportional to 55,278.72, 82,915.20 and 17,838.09

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Solution

The fourth proportional to 55,278.72, 82,915.20 and 17,838.09 is: 26,756.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,278.72 : 82,915.20 = 17,838.09 : x
  2. Step 2: Convert to fraction form
    55,278.72/82,915.20 = 17,838.09/x
  3. Step 3: Cross multiply
    55,278.72x = 82,915.20 × 17,838.09
  4. Step 4: Simplify right side
    55,278.72x = 1,479,048,799.97
  5. Step 5: Solve for x
    x = 1,479,048,799.97/55,278.72
  6. Step 6: Final answer
    x = 26,756.21

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