Finding the Fourth Proportional to 107,728.50, 148,675.17 and 63,016.50

Step by Step Solution

1. Step 1: Write the proportion equation
   107,728.50 : 148,675.17 = 63,016.50 : x
2. Step 2: Convert to fraction form
   107,728.50/148,675.17 = 63,016.50/x
3. Step 3: Cross multiply
   107,728.50x = 148,675.17 × 63,016.50
4. Step 4: Simplify right side
   107,728.50x = 9,368,988,850.31
5. Step 5: Solve for x
   x = 9,368,988,850.31/107,728.50
6. Step 6: Final answer
   x = 86,968.53