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Finding the Fourth Proportional to 76,637.79, 105,759.12 and 43,103.79

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Solution

The fourth proportional to 76,637.79, 105,759.12 and 43,103.79 is: 59,482.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,637.79 : 105,759.12 = 43,103.79 : x
  2. Step 2: Convert to fraction form
    76,637.79/105,759.12 = 43,103.79/x
  3. Step 3: Cross multiply
    76,637.79x = 105,759.12 × 43,103.79
  4. Step 4: Simplify right side
    76,637.79x = 4,558,618,899.06
  5. Step 5: Solve for x
    x = 4,558,618,899.06/76,637.79
  6. Step 6: Final answer
    x = 59,482.65

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