Finding the Fourth Proportional to 76,714.62, 105,863.31 and 42,724.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,714.62 : 105,863.31 = 42,724.50 : x
2. Step 2: Convert to fraction form
   76,714.62/105,863.31 = 42,724.50/x
3. Step 3: Cross multiply
   76,714.62x = 105,863.31 × 42,724.50
4. Step 4: Simplify right side
   76,714.62x = 4,522,956,988.10
5. Step 5: Solve for x
   x = 4,522,956,988.10/76,714.62
6. Step 6: Final answer
   x = 58,958.21