Finding the Fourth Proportional to 107,961.12, 148,921.02 and 69,660.72

Step by Step Solution

1. Step 1: Write the proportion equation
   107,961.12 : 148,921.02 = 69,660.72 : x
2. Step 2: Convert to fraction form
   107,961.12/148,921.02 = 69,660.72/x
3. Step 3: Cross multiply
   107,961.12x = 148,921.02 × 69,660.72
4. Step 4: Simplify right side
   107,961.12x = 10,373,945,476.33
5. Step 5: Solve for x
   x = 10,373,945,476.33/107,961.12
6. Step 6: Final answer
   x = 96,089.64