Finding the Fourth Proportional to 23,118.16, 31,903.32 and 13,560.16

Step by Step Solution

1. Step 1: Write the proportion equation
   23,118.16 : 31,903.32 = 13,560.16 : x
2. Step 2: Convert to fraction form
   23,118.16/31,903.32 = 13,560.16/x
3. Step 3: Cross multiply
   23,118.16x = 31,903.32 × 13,560.16
4. Step 4: Simplify right side
   23,118.16x = 432,614,123.73
5. Step 5: Solve for x
   x = 432,614,123.73/23,118.16
6. Step 6: Final answer
   x = 18,713.17