Finding the Fourth Proportional to 23,116.71, 31,901.33 and 13,045.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,116.71 : 31,901.33 = 13,045.28 : x
2. Step 2: Convert to fraction form
   23,116.71/31,901.33 = 13,045.28/x
3. Step 3: Cross multiply
   23,116.71x = 31,901.33 × 13,045.28
4. Step 4: Simplify right side
   23,116.71x = 416,161,557.49
5. Step 5: Solve for x
   x = 416,161,557.49/23,116.71
6. Step 6: Final answer
   x = 18,002.63