Finding the Fourth Proportional to 107,648.72, 148,471.08 and 69,935.12

Step by Step Solution

1. Step 1: Write the proportion equation
   107,648.72 : 148,471.08 = 69,935.12 : x
2. Step 2: Convert to fraction form
   107,648.72/148,471.08 = 69,935.12/x
3. Step 3: Cross multiply
   107,648.72x = 148,471.08 × 69,935.12
4. Step 4: Simplify right side
   107,648.72x = 10,383,342,796.33
5. Step 5: Solve for x
   x = 10,383,342,796.33/107,648.72
6. Step 6: Final answer
   x = 96,455.79