Finding the Fourth Proportional to 99,087.12, 136,737.72 and 54,883.32

Step by Step Solution

1. Step 1: Write the proportion equation
   99,087.12 : 136,737.72 = 54,883.32 : x
2. Step 2: Convert to fraction form
   99,087.12/136,737.72 = 54,883.32/x
3. Step 3: Cross multiply
   99,087.12x = 136,737.72 × 54,883.32
4. Step 4: Simplify right side
   99,087.12x = 7,504,620,042.83
5. Step 5: Solve for x
   x = 7,504,620,042.83/99,087.12
6. Step 6: Final answer
   x = 75,737.59