Finding the Fourth Proportional to 23,116.29, 31,890.33 and 13,551.33

Step by Step Solution

1. Step 1: Write the proportion equation
   23,116.29 : 31,890.33 = 13,551.33 : x
2. Step 2: Convert to fraction form
   23,116.29/31,890.33 = 13,551.33/x
3. Step 3: Cross multiply
   23,116.29x = 31,890.33 × 13,551.33
4. Step 4: Simplify right side
   23,116.29x = 432,156,385.64
5. Step 5: Solve for x
   x = 432,156,385.64/23,116.29
6. Step 6: Final answer
   x = 18,694.89