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Finding the Fourth Proportional to 18,668.92, 25,763.64 and 10,712.56

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Solution

The fourth proportional to 18,668.92, 25,763.64 and 10,712.56 is: 14,783.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668.92 : 25,763.64 = 10,712.56 : x
  2. Step 2: Convert to fraction form
    18,668.92/25,763.64 = 10,712.56/x
  3. Step 3: Cross multiply
    18,668.92x = 25,763.64 × 10,712.56
  4. Step 4: Simplify right side
    18,668.92x = 275,994,539.32
  5. Step 5: Solve for x
    x = 275,994,539.32/18,668.92
  6. Step 6: Final answer
    x = 14,783.64

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