Finding the Fourth Proportional to 126,131.15, 189,191.25 and 31,359.35

Step by Step Solution

1. Step 1: Write the proportion equation
   126,131.15 : 189,191.25 = 31,359.35 : x
2. Step 2: Convert to fraction form
   126,131.15/189,191.25 = 31,359.35/x
3. Step 3: Cross multiply
   126,131.15x = 189,191.25 × 31,359.35
4. Step 4: Simplify right side
   126,131.15x = 5,932,913,679.73
5. Step 5: Solve for x
   x = 5,932,913,679.73/126,131.15
6. Step 6: Final answer
   x = 47,037.66