Finding the Fourth Proportional to 22,910.91, 31,619.27 and 12,841.05

Step by Step Solution

1. Step 1: Write the proportion equation
   22,910.91 : 31,619.27 = 12,841.05 : x
2. Step 2: Convert to fraction form
   22,910.91/31,619.27 = 12,841.05/x
3. Step 3: Cross multiply
   22,910.91x = 31,619.27 × 12,841.05
4. Step 4: Simplify right side
   22,910.91x = 406,024,627.03
5. Step 5: Solve for x
   x = 406,024,627.03/22,910.91
6. Step 6: Final answer
   x = 17,721.89