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Finding the Fourth Proportional to 19,860.84, 29,770.65 and 6,708.78

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Solution

The fourth proportional to 19,860.84, 29,770.65 and 6,708.78 is: 10,056.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.84 : 29,770.65 = 6,708.78 : x
  2. Step 2: Convert to fraction form
    19,860.84/29,770.65 = 6,708.78/x
  3. Step 3: Cross multiply
    19,860.84x = 29,770.65 × 6,708.78
  4. Step 4: Simplify right side
    19,860.84x = 199,724,741.31
  5. Step 5: Solve for x
    x = 199,724,741.31/19,860.84
  6. Step 6: Final answer
    x = 10,056.21

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