Finding the Fourth Proportional to 22,522.60, 31,081.18 and 12,586.60

Step by Step Solution

1. Step 1: Write the proportion equation
   22,522.60 : 31,081.18 = 12,586.60 : x
2. Step 2: Convert to fraction form
   22,522.60/31,081.18 = 12,586.60/x
3. Step 3: Cross multiply
   22,522.60x = 31,081.18 × 12,586.60
4. Step 4: Simplify right side
   22,522.60x = 391,206,271.02
5. Step 5: Solve for x
   x = 391,206,271.02/22,522.60
6. Step 6: Final answer
   x = 17,369.50