Finding the Fourth Proportional to 22,815.58, 34,231.86 and 13,949.08

Step by Step Solution

1. Step 1: Write the proportion equation
   22,815.58 : 34,231.86 = 13,949.08 : x
2. Step 2: Convert to fraction form
   22,815.58/34,231.86 = 13,949.08/x
3. Step 3: Cross multiply
   22,815.58x = 34,231.86 × 13,949.08
4. Step 4: Simplify right side
   22,815.58x = 477,502,953.69
5. Step 5: Solve for x
   x = 477,502,953.69/22,815.58
6. Step 6: Final answer
   x = 20,928.81