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Finding the Fourth Proportional to 7,727.91, 10,664.51 and 4,191.14

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Solution

The fourth proportional to 7,727.91, 10,664.51 and 4,191.14 is: 5,783.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.91 : 10,664.51 = 4,191.14 : x
  2. Step 2: Convert to fraction form
    7,727.91/10,664.51 = 4,191.14/x
  3. Step 3: Cross multiply
    7,727.91x = 10,664.51 × 4,191.14
  4. Step 4: Simplify right side
    7,727.91x = 44,696,483.72
  5. Step 5: Solve for x
    x = 44,696,483.72/7,727.91
  6. Step 6: Final answer
    x = 5,783.78

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