Finding the Fourth Proportional to 31,217.88, 43,081.56 and 17,070.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,217.88 : 43,081.56 = 17,070.96 : x
2. Step 2: Convert to fraction form
   31,217.88/43,081.56 = 17,070.96/x
3. Step 3: Cross multiply
   31,217.88x = 43,081.56 × 17,070.96
4. Step 4: Simplify right side
   31,217.88x = 735,443,587.50
5. Step 5: Solve for x
   x = 735,443,587.50/31,217.88
6. Step 6: Final answer
   x = 23,558.41