Finding the Fourth Proportional to 99,360.59, 137,152.82 and 59,074.16

Step by Step Solution

1. Step 1: Write the proportion equation
   99,360.59 : 137,152.82 = 59,074.16 : x
2. Step 2: Convert to fraction form
   99,360.59/137,152.82 = 59,074.16/x
3. Step 3: Cross multiply
   99,360.59x = 137,152.82 × 59,074.16
4. Step 4: Simplify right side
   99,360.59x = 8,102,188,123.70
5. Step 5: Solve for x
   x = 8,102,188,123.70/99,360.59
6. Step 6: Final answer
   x = 81,543.28