Finding the Fourth Proportional to 57,345.24, 79,139.04 and 31,851.69

Step by Step Solution

1. Step 1: Write the proportion equation
   57,345.24 : 79,139.04 = 31,851.69 : x
2. Step 2: Convert to fraction form
   57,345.24/79,139.04 = 31,851.69/x
3. Step 3: Cross multiply
   57,345.24x = 79,139.04 × 31,851.69
4. Step 4: Simplify right side
   57,345.24x = 2,520,712,168.98
5. Step 5: Solve for x
   x = 2,520,712,168.98/57,345.24
6. Step 6: Final answer
   x = 43,956.78