Finding the Fourth Proportional to 99,227.10, 136,932.85 and 53,904.72

Step by Step Solution

1. Step 1: Write the proportion equation
   99,227.10 : 136,932.85 = 53,904.72 : x
2. Step 2: Convert to fraction form
   99,227.10/136,932.85 = 53,904.72/x
3. Step 3: Cross multiply
   99,227.10x = 136,932.85 × 53,904.72
4. Step 4: Simplify right side
   99,227.10x = 7,381,327,005.43
5. Step 5: Solve for x
   x = 7,381,327,005.43/99,227.10
6. Step 6: Final answer
   x = 74,388.22