Finding the Fourth Proportional to 108,824.93, 150,240.86 and 72,516.78

Step by Step Solution

1. Step 1: Write the proportion equation
   108,824.93 : 150,240.86 = 72,516.78 : x
2. Step 2: Convert to fraction form
   108,824.93/150,240.86 = 72,516.78/x
3. Step 3: Cross multiply
   108,824.93x = 150,240.86 × 72,516.78
4. Step 4: Simplify right side
   108,824.93x = 10,894,983,300.98
5. Step 5: Solve for x
   x = 10,894,983,300.98/108,824.93
6. Step 6: Final answer
   x = 100,114.78