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Finding the Fourth Proportional to 49,978.68, 74,946 and 18,792

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Solution

The fourth proportional to 49,978.68, 74,946 and 18,792 is: 28,179.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,978.68 : 74,946 = 18,792 : x
  2. Step 2: Convert to fraction form
    49,978.68/74,946 = 18,792/x
  3. Step 3: Cross multiply
    49,978.68x = 74,946 × 18,792
  4. Step 4: Simplify right side
    49,978.68x = 1,408,385,232
  5. Step 5: Solve for x
    x = 1,408,385,232/49,978.68
  6. Step 6: Final answer
    x = 28,179.72

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