Finding the Fourth Proportional to 99,825.42, 137,709.37 and 59,510.78

Step by Step Solution

1. Step 1: Write the proportion equation
   99,825.42 : 137,709.37 = 59,510.78 : x
2. Step 2: Convert to fraction form
   99,825.42/137,709.37 = 59,510.78/x
3. Step 3: Cross multiply
   99,825.42x = 137,709.37 × 59,510.78
4. Step 4: Simplify right side
   99,825.42x = 8,195,192,022.01
5. Step 5: Solve for x
   x = 8,195,192,022.01/99,825.42
6. Step 6: Final answer
   x = 82,095.24