Finding the Fourth Proportional to 22,471.40, 31,016.70 and 13,043

Step by Step Solution

1. Step 1: Write the proportion equation
   22,471.40 : 31,016.70 = 13,043 : x
2. Step 2: Convert to fraction form
   22,471.40/31,016.70 = 13,043/x
3. Step 3: Cross multiply
   22,471.40x = 31,016.70 × 13,043
4. Step 4: Simplify right side
   22,471.40x = 404,550,818.10
5. Step 5: Solve for x
   x = 404,550,818.10/22,471.40
6. Step 6: Final answer
   x = 18,002.92