Finding the Fourth Proportional to 22,301.52, 30,775.82 and 12,869.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,301.52 : 30,775.82 = 12,869.88 : x
2. Step 2: Convert to fraction form
   22,301.52/30,775.82 = 12,869.88/x
3. Step 3: Cross multiply
   22,301.52x = 30,775.82 × 12,869.88
4. Step 4: Simplify right side
   22,301.52x = 396,081,110.30
5. Step 5: Solve for x
   x = 396,081,110.30/22,301.52
6. Step 6: Final answer
   x = 17,760.27