Finding the Fourth Proportional to 93,612.50, 129,185.79 and 60,078.50

Step by Step Solution

1. Step 1: Write the proportion equation
   93,612.50 : 129,185.79 = 60,078.50 : x
2. Step 2: Convert to fraction form
   93,612.50/129,185.79 = 60,078.50/x
3. Step 3: Cross multiply
   93,612.50x = 129,185.79 × 60,078.50
4. Step 4: Simplify right side
   93,612.50x = 7,761,288,484.52
5. Step 5: Solve for x
   x = 7,761,288,484.52/93,612.50
6. Step 6: Final answer
   x = 82,908.68