Finding the Fourth Proportional to 58,685.72, 80,880.54 and 42,744.92

Step by Step Solution

1. Step 1: Write the proportion equation
   58,685.72 : 80,880.54 = 42,744.92 : x
2. Step 2: Convert to fraction form
   58,685.72/80,880.54 = 42,744.92/x
3. Step 3: Cross multiply
   58,685.72x = 80,880.54 × 42,744.92
4. Step 4: Simplify right side
   58,685.72x = 3,457,232,211.86
5. Step 5: Solve for x
   x = 3,457,232,211.86/58,685.72
6. Step 6: Final answer
   x = 58,910.96