Finding the Fourth Proportional to 22,522, 31,081.32 and 12,586

Step by Step Solution

1. Step 1: Write the proportion equation
   22,522 : 31,081.32 = 12,586 : x
2. Step 2: Convert to fraction form
   22,522/31,081.32 = 12,586/x
3. Step 3: Cross multiply
   22,522x = 31,081.32 × 12,586
4. Step 4: Simplify right side
   22,522x = 391,189,493.52
5. Step 5: Solve for x
   x = 391,189,493.52/22,522
6. Step 6: Final answer
   x = 17,369.22