Finding the Fourth Proportional to 31,372.27, 43,293.18 and 17,225

Step by Step Solution

1. Step 1: Write the proportion equation
   31,372.27 : 43,293.18 = 17,225 : x
2. Step 2: Convert to fraction form
   31,372.27/43,293.18 = 17,225/x
3. Step 3: Cross multiply
   31,372.27x = 43,293.18 × 17,225
4. Step 4: Simplify right side
   31,372.27x = 745,725,025.50
5. Step 5: Solve for x
   x = 745,725,025.50/31,372.27
6. Step 6: Final answer
   x = 23,770.20