Finding the Fourth Proportional to 31,470.80, 43,419.92 and 17,856.59

Step by Step Solution

1. Step 1: Write the proportion equation
   31,470.80 : 43,419.92 = 17,856.59 : x
2. Step 2: Convert to fraction form
   31,470.80/43,419.92 = 17,856.59/x
3. Step 3: Cross multiply
   31,470.80x = 43,419.92 × 17,856.59
4. Step 4: Simplify right side
   31,470.80x = 775,331,402.89
5. Step 5: Solve for x
   x = 775,331,402.89/31,470.80
6. Step 6: Final answer
   x = 24,636.54