Finding the Fourth Proportional to 9,145.66, 12,621.24 and 5,606.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,145.66 : 12,621.24 = 5,606.82 : x
2. Step 2: Convert to fraction form
   9,145.66/12,621.24 = 5,606.82/x
3. Step 3: Cross multiply
   9,145.66x = 12,621.24 × 5,606.82
4. Step 4: Simplify right side
   9,145.66x = 70,765,020.86
5. Step 5: Solve for x
   x = 70,765,020.86/9,145.66
6. Step 6: Final answer
   x = 7,737.55