Finding the Fourth Proportional to 22,842.18, 31,522.90 and 12,771.05

Step by Step Solution

1. Step 1: Write the proportion equation
   22,842.18 : 31,522.90 = 12,771.05 : x
2. Step 2: Convert to fraction form
   22,842.18/31,522.90 = 12,771.05/x
3. Step 3: Cross multiply
   22,842.18x = 31,522.90 × 12,771.05
4. Step 4: Simplify right side
   22,842.18x = 402,580,374.43
5. Step 5: Solve for x
   x = 402,580,374.43/22,842.18
6. Step 6: Final answer
   x = 17,624.43