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Finding the Fourth Proportional to 18,819.68, 28,229.04 and 4,968.80

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Solution

The fourth proportional to 18,819.68, 28,229.04 and 4,968.80 is: 7,453.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819.68 : 28,229.04 = 4,968.80 : x
  2. Step 2: Convert to fraction form
    18,819.68/28,229.04 = 4,968.80/x
  3. Step 3: Cross multiply
    18,819.68x = 28,229.04 × 4,968.80
  4. Step 4: Simplify right side
    18,819.68x = 140,264,453.95
  5. Step 5: Solve for x
    x = 140,264,453.95/18,819.68
  6. Step 6: Final answer
    x = 7,453.07

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