Finding the Fourth Proportional to 31,168.50, 46,719.95 and 18,695.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,168.50 : 46,719.95 = 18,695.31 : x
2. Step 2: Convert to fraction form
   31,168.50/46,719.95 = 18,695.31/x
3. Step 3: Cross multiply
   31,168.50x = 46,719.95 × 18,695.31
4. Step 4: Simplify right side
   31,168.50x = 873,443,854.96
5. Step 5: Solve for x
   x = 873,443,854.96/31,168.50
6. Step 6: Final answer
   x = 28,023.29