Finding the Fourth Proportional to 74,863.12, 103,304.90 and 42,589.15

Step by Step Solution

1. Step 1: Write the proportion equation
   74,863.12 : 103,304.90 = 42,589.15 : x
2. Step 2: Convert to fraction form
   74,863.12/103,304.90 = 42,589.15/x
3. Step 3: Cross multiply
   74,863.12x = 103,304.90 × 42,589.15
4. Step 4: Simplify right side
   74,863.12x = 4,399,667,881.84
5. Step 5: Solve for x
   x = 4,399,667,881.84/74,863.12
6. Step 6: Final answer
   x = 58,769.50