Finding the Fourth Proportional to 99,758.48, 148,907.86 and 87,949.04

Step by Step Solution

1. Step 1: Write the proportion equation
   99,758.48 : 148,907.86 = 87,949.04 : x
2. Step 2: Convert to fraction form
   99,758.48/148,907.86 = 87,949.04/x
3. Step 3: Cross multiply
   99,758.48x = 148,907.86 × 87,949.04
4. Step 4: Simplify right side
   99,758.48x = 13,096,303,335.45
5. Step 5: Solve for x
   x = 13,096,303,335.45/99,758.48
6. Step 6: Final answer
   x = 131,280.10