Finding the Fourth Proportional to 90,797.12, 125,196.72 and 63,931.04

Step by Step Solution

1. Step 1: Write the proportion equation
   90,797.12 : 125,196.72 = 63,931.04 : x
2. Step 2: Convert to fraction form
   90,797.12/125,196.72 = 63,931.04/x
3. Step 3: Cross multiply
   90,797.12x = 125,196.72 × 63,931.04
4. Step 4: Simplify right side
   90,797.12x = 8,003,956,514.19
5. Step 5: Solve for x
   x = 8,003,956,514.19/90,797.12
6. Step 6: Final answer
   x = 88,152.10