Finding the Fourth Proportional to 9,149.29, 12,621.14 and 5,565.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,149.29 : 12,621.14 = 5,565.34 : x
2. Step 2: Convert to fraction form
   9,149.29/12,621.14 = 5,565.34/x
3. Step 3: Cross multiply
   9,149.29x = 12,621.14 × 5,565.34
4. Step 4: Simplify right side
   9,149.29x = 70,240,930.27
5. Step 5: Solve for x
   x = 70,240,930.27/9,149.29
6. Step 6: Final answer
   x = 7,677.20