Finding the Fourth Proportional to 108,385.68, 149,521.72 and 70,157.56

Step by Step Solution

1. Step 1: Write the proportion equation
   108,385.68 : 149,521.72 = 70,157.56 : x
2. Step 2: Convert to fraction form
   108,385.68/149,521.72 = 70,157.56/x
3. Step 3: Cross multiply
   108,385.68x = 149,521.72 × 70,157.56
4. Step 4: Simplify right side
   108,385.68x = 10,490,079,042.20
5. Step 5: Solve for x
   x = 10,490,079,042.20/108,385.68
6. Step 6: Final answer
   x = 96,784.73