Finding the Fourth Proportional to 107,568.33, 148,505.10 and 81,872.88

Step by Step Solution

1. Step 1: Write the proportion equation
   107,568.33 : 148,505.10 = 81,872.88 : x
2. Step 2: Convert to fraction form
   107,568.33/148,505.10 = 81,872.88/x
3. Step 3: Cross multiply
   107,568.33x = 148,505.10 × 81,872.88
4. Step 4: Simplify right side
   107,568.33x = 12,158,540,231.69
5. Step 5: Solve for x
   x = 12,158,540,231.69/107,568.33
6. Step 6: Final answer
   x = 113,030.85