Finding the Fourth Proportional to 99,456.72, 148,977.72 and 44,091.60

Step by Step Solution

1. Step 1: Write the proportion equation
   99,456.72 : 148,977.72 = 44,091.60 : x
2. Step 2: Convert to fraction form
   99,456.72/148,977.72 = 44,091.60/x
3. Step 3: Cross multiply
   99,456.72x = 148,977.72 × 44,091.60
4. Step 4: Simplify right side
   99,456.72x = 6,568,666,039.15
5. Step 5: Solve for x
   x = 6,568,666,039.15/99,456.72
6. Step 6: Final answer
   x = 66,045.47