Finding the Fourth Proportional to 107,728.54, 148,526.42 and 88,275.12

Step by Step Solution

1. Step 1: Write the proportion equation
   107,728.54 : 148,526.42 = 88,275.12 : x
2. Step 2: Convert to fraction form
   107,728.54/148,526.42 = 88,275.12/x
3. Step 3: Cross multiply
   107,728.54x = 148,526.42 × 88,275.12
4. Step 4: Simplify right side
   107,728.54x = 13,111,187,548.67
5. Step 5: Solve for x
   x = 13,111,187,548.67/107,728.54
6. Step 6: Final answer
   x = 121,705.79