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Finding the Fourth Proportional to 71,482.60, 107,224.81 and 18,891.63

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Solution

The fourth proportional to 71,482.60, 107,224.81 and 18,891.63 is: 28,337.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,482.60 : 107,224.81 = 18,891.63 : x
  2. Step 2: Convert to fraction form
    71,482.60/107,224.81 = 18,891.63/x
  3. Step 3: Cross multiply
    71,482.60x = 107,224.81 × 18,891.63
  4. Step 4: Simplify right side
    71,482.60x = 2,025,650,806.76
  5. Step 5: Solve for x
    x = 2,025,650,806.76/71,482.60
  6. Step 6: Final answer
    x = 28,337.68

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