Finding the Fourth Proportional to 95,138.88, 142,729.20 and 31,956.72

Step by Step Solution

1. Step 1: Write the proportion equation
   95,138.88 : 142,729.20 = 31,956.72 : x
2. Step 2: Convert to fraction form
   95,138.88/142,729.20 = 31,956.72/x
3. Step 3: Cross multiply
   95,138.88x = 142,729.20 × 31,956.72
4. Step 4: Simplify right side
   95,138.88x = 4,561,157,080.22
5. Step 5: Solve for x
   x = 4,561,157,080.22/95,138.88
6. Step 6: Final answer
   x = 47,942.09