Finding the Fourth Proportional to 31,242.96, 43,116.48 and 17,816.40

Step by Step Solution

1. Step 1: Write the proportion equation
   31,242.96 : 43,116.48 = 17,816.40 : x
2. Step 2: Convert to fraction form
   31,242.96/43,116.48 = 17,816.40/x
3. Step 3: Cross multiply
   31,242.96x = 43,116.48 × 17,816.40
4. Step 4: Simplify right side
   31,242.96x = 768,180,454.27
5. Step 5: Solve for x
   x = 768,180,454.27/31,242.96
6. Step 6: Final answer
   x = 24,587.31