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Finding the Fourth Proportional to 7,766.82, 10,718.46 and 4,409.78

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Solution

The fourth proportional to 7,766.82, 10,718.46 and 4,409.78 is: 6,085.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.82 : 10,718.46 = 4,409.78 : x
  2. Step 2: Convert to fraction form
    7,766.82/10,718.46 = 4,409.78/x
  3. Step 3: Cross multiply
    7,766.82x = 10,718.46 × 4,409.78
  4. Step 4: Simplify right side
    7,766.82x = 47,266,050.54
  5. Step 5: Solve for x
    x = 47,266,050.54/7,766.82
  6. Step 6: Final answer
    x = 6,085.64

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