Finding the Fourth Proportional to 16,788.18, 23,166.26 and 9,715.04

Step by Step Solution

1. Step 1: Write the proportion equation
   16,788.18 : 23,166.26 = 9,715.04 : x
2. Step 2: Convert to fraction form
   16,788.18/23,166.26 = 9,715.04/x
3. Step 3: Cross multiply
   16,788.18x = 23,166.26 × 9,715.04
4. Step 4: Simplify right side
   16,788.18x = 225,061,142.55
5. Step 5: Solve for x
   x = 225,061,142.55/16,788.18
6. Step 6: Final answer
   x = 13,405.93