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Finding the Fourth Proportional to 15,912.81, 23,868.99 and 4,819.73

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Solution

The fourth proportional to 15,912.81, 23,868.99 and 4,819.73 is: 7,229.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,912.81 : 23,868.99 = 4,819.73 : x
  2. Step 2: Convert to fraction form
    15,912.81/23,868.99 = 4,819.73/x
  3. Step 3: Cross multiply
    15,912.81x = 23,868.99 × 4,819.73
  4. Step 4: Simplify right side
    15,912.81x = 115,041,967.83
  5. Step 5: Solve for x
    x = 115,041,967.83/15,912.81
  6. Step 6: Final answer
    x = 7,229.52

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