Finding the Fourth Proportional to 22,842.56, 31,522.72 and 12,906.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,842.56 : 31,522.72 = 12,906.56 : x
2. Step 2: Convert to fraction form
   22,842.56/31,522.72 = 12,906.56/x
3. Step 3: Cross multiply
   22,842.56x = 31,522.72 × 12,906.56
4. Step 4: Simplify right side
   22,842.56x = 406,849,877.04
5. Step 5: Solve for x
   x = 406,849,877.04/22,842.56
6. Step 6: Final answer
   x = 17,811.05