Finding the Fourth Proportional to 99,104.32, 136,730.46 and 56,632.78

Step by Step Solution

1. Step 1: Write the proportion equation
   99,104.32 : 136,730.46 = 56,632.78 : x
2. Step 2: Convert to fraction form
   99,104.32/136,730.46 = 56,632.78/x
3. Step 3: Cross multiply
   99,104.32x = 136,730.46 × 56,632.78
4. Step 4: Simplify right side
   99,104.32x = 7,743,426,060.48
5. Step 5: Solve for x
   x = 7,743,426,060.48/99,104.32
6. Step 6: Final answer
   x = 78,134.09