Finding the Fourth Proportional to 51,271.86, 70,760.02 and 31,124.10

Step by Step Solution

1. Step 1: Write the proportion equation
   51,271.86 : 70,760.02 = 31,124.10 : x
2. Step 2: Convert to fraction form
   51,271.86/70,760.02 = 31,124.10/x
3. Step 3: Cross multiply
   51,271.86x = 70,760.02 × 31,124.10
4. Step 4: Simplify right side
   51,271.86x = 2,202,341,938.48
5. Step 5: Solve for x
   x = 2,202,341,938.48/51,271.86
6. Step 6: Final answer
   x = 42,954.20