Finding the Fourth Proportional to 99,049.98, 136,674.51 and 56,600.31

Step by Step Solution

1. Step 1: Write the proportion equation
   99,049.98 : 136,674.51 = 56,600.31 : x
2. Step 2: Convert to fraction form
   99,049.98/136,674.51 = 56,600.31/x
3. Step 3: Cross multiply
   99,049.98x = 136,674.51 × 56,600.31
4. Step 4: Simplify right side
   99,049.98x = 7,735,819,635.10
5. Step 5: Solve for x
   x = 7,735,819,635.10/99,049.98
6. Step 6: Final answer
   x = 78,100.16