Finding the Fourth Proportional to 31,508.18, 43,480.89 and 17,168.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,508.18 : 43,480.89 = 17,168.62 : x
2. Step 2: Convert to fraction form
   31,508.18/43,480.89 = 17,168.62/x
3. Step 3: Cross multiply
   31,508.18x = 43,480.89 × 17,168.62
4. Step 4: Simplify right side
   31,508.18x = 746,506,877.67
5. Step 5: Solve for x
   x = 746,506,877.67/31,508.18
6. Step 6: Final answer
   x = 23,692.48