Finding the Fourth Proportional to 99,863.82, 137,811.32 and 54,541.82

Step by Step Solution

1. Step 1: Write the proportion equation
   99,863.82 : 137,811.32 = 54,541.82 : x
2. Step 2: Convert to fraction form
   99,863.82/137,811.32 = 54,541.82/x
3. Step 3: Cross multiply
   99,863.82x = 137,811.32 × 54,541.82
4. Step 4: Simplify right side
   99,863.82x = 7,516,480,485.75
5. Step 5: Solve for x
   x = 7,516,480,485.75/99,863.82
6. Step 6: Final answer
   x = 75,267.30