Finding the Fourth Proportional to 107,963.12, 148,923.78 and 69,662.72

Step by Step Solution

1. Step 1: Write the proportion equation
   107,963.12 : 148,923.78 = 69,662.72 : x
2. Step 2: Convert to fraction form
   107,963.12/148,923.78 = 69,662.72/x
3. Step 3: Cross multiply
   107,963.12x = 148,923.78 × 69,662.72
4. Step 4: Simplify right side
   107,963.12x = 10,374,435,587.48
5. Step 5: Solve for x
   x = 10,374,435,587.48/107,963.12
6. Step 6: Final answer
   x = 96,092.40