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Finding the Fourth Proportional to 61,069.84, 91,617.81 and 18,949

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Solution

The fourth proportional to 61,069.84, 91,617.81 and 18,949 is: 28,427.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,069.84 : 91,617.81 = 18,949 : x
  2. Step 2: Convert to fraction form
    61,069.84/91,617.81 = 18,949/x
  3. Step 3: Cross multiply
    61,069.84x = 91,617.81 × 18,949
  4. Step 4: Simplify right side
    61,069.84x = 1,736,065,881.69
  5. Step 5: Solve for x
    x = 1,736,065,881.69/61,069.84
  6. Step 6: Final answer
    x = 28,427.55

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