Finding the Fourth Proportional to 22,881.34, 31,572.59 and 12,810.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,881.34 : 31,572.59 = 12,810.20 : x
2. Step 2: Convert to fraction form
   22,881.34/31,572.59 = 12,810.20/x
3. Step 3: Cross multiply
   22,881.34x = 31,572.59 × 12,810.20
4. Step 4: Simplify right side
   22,881.34x = 404,451,148.10
5. Step 5: Solve for x
   x = 404,451,148.10/22,881.34
6. Step 6: Final answer
   x = 17,676.03