Finding the Fourth Proportional to 23,715.78, 32,726.16 and 13,105.32

Step by Step Solution

1. Step 1: Write the proportion equation
   23,715.78 : 32,726.16 = 13,105.32 : x
2. Step 2: Convert to fraction form
   23,715.78/32,726.16 = 13,105.32/x
3. Step 3: Cross multiply
   23,715.78x = 32,726.16 × 13,105.32
4. Step 4: Simplify right side
   23,715.78x = 428,886,799.17
5. Step 5: Solve for x
   x = 428,886,799.17/23,715.78
6. Step 6: Final answer
   x = 18,084.45