Finding the Fourth Proportional to 31,399.32, 43,328.34 and 17,248.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,399.32 : 43,328.34 = 17,248.62 : x
2. Step 2: Convert to fraction form
   31,399.32/43,328.34 = 17,248.62/x
3. Step 3: Cross multiply
   31,399.32x = 43,328.34 × 17,248.62
4. Step 4: Simplify right side
   31,399.32x = 747,354,071.89
5. Step 5: Solve for x
   x = 747,354,071.89/31,399.32
6. Step 6: Final answer
   x = 23,801.60