Finding the Fourth Proportional to 76,872.87, 115,314.17 and 32,493.78

Step by Step Solution

1. Step 1: Write the proportion equation
   76,872.87 : 115,314.17 = 32,493.78 : x
2. Step 2: Convert to fraction form
   76,872.87/115,314.17 = 32,493.78/x
3. Step 3: Cross multiply
   76,872.87x = 115,314.17 × 32,493.78
4. Step 4: Simplify right side
   76,872.87x = 3,746,993,108.39
5. Step 5: Solve for x
   x = 3,746,993,108.39/76,872.87
6. Step 6: Final answer
   x = 48,742.72