Finding the Fourth Proportional to 22,149.50, 30,566.82 and 12,587.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,149.50 : 30,566.82 = 12,587.88 : x
2. Step 2: Convert to fraction form
   22,149.50/30,566.82 = 12,587.88/x
3. Step 3: Cross multiply
   22,149.50x = 30,566.82 × 12,587.88
4. Step 4: Simplify right side
   22,149.50x = 384,771,462.14
5. Step 5: Solve for x
   x = 384,771,462.14/22,149.50
6. Step 6: Final answer
   x = 17,371.57