Finding the Fourth Proportional to 31,257.96, 43,136.46 and 17,112.12

Step by Step Solution

1. Step 1: Write the proportion equation
   31,257.96 : 43,136.46 = 17,112.12 : x
2. Step 2: Convert to fraction form
   31,257.96/43,136.46 = 17,112.12/x
3. Step 3: Cross multiply
   31,257.96x = 43,136.46 × 17,112.12
4. Step 4: Simplify right side
   31,257.96x = 738,156,279.90
5. Step 5: Solve for x
   x = 738,156,279.90/31,257.96
6. Step 6: Final answer
   x = 23,614.99