Finding the Fourth Proportional to 107,872.10, 148,877.86 and 61,949.96

Step by Step Solution

1. Step 1: Write the proportion equation
   107,872.10 : 148,877.86 = 61,949.96 : x
2. Step 2: Convert to fraction form
   107,872.10/148,877.86 = 61,949.96/x
3. Step 3: Cross multiply
   107,872.10x = 148,877.86 × 61,949.96
4. Step 4: Simplify right side
   107,872.10x = 9,222,977,471.89
5. Step 5: Solve for x
   x = 9,222,977,471.89/107,872.10
6. Step 6: Final answer
   x = 85,499.19