Finding the Fourth Proportional to 9,028.62, 12,455.64 and 5,669.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,028.62 : 12,455.64 = 5,669.10 : x
2. Step 2: Convert to fraction form
   9,028.62/12,455.64 = 5,669.10/x
3. Step 3: Cross multiply
   9,028.62x = 12,455.64 × 5,669.10
4. Step 4: Simplify right side
   9,028.62x = 70,612,268.72
5. Step 5: Solve for x
   x = 70,612,268.72/9,028.62
6. Step 6: Final answer
   x = 7,820.94