Finding the Fourth Proportional to 99,049.80, 136,688.22 and 53,727.72

Step by Step Solution

1. Step 1: Write the proportion equation
   99,049.80 : 136,688.22 = 53,727.72 : x
2. Step 2: Convert to fraction form
   99,049.80/136,688.22 = 53,727.72/x
3. Step 3: Cross multiply
   99,049.80x = 136,688.22 × 53,727.72
4. Step 4: Simplify right side
   99,049.80x = 7,343,946,411.46
5. Step 5: Solve for x
   x = 7,343,946,411.46/99,049.80
6. Step 6: Final answer
   x = 74,143.98