Finding the Fourth Proportional to 8,807.38, 12,155.43 and 5,451.27

Step by Step Solution

1. Step 1: Write the proportion equation
   8,807.38 : 12,155.43 = 5,451.27 : x
2. Step 2: Convert to fraction form
   8,807.38/12,155.43 = 5,451.27/x
3. Step 3: Cross multiply
   8,807.38x = 12,155.43 × 5,451.27
4. Step 4: Simplify right side
   8,807.38x = 66,262,503.64
5. Step 5: Solve for x
   x = 66,262,503.64/8,807.38
6. Step 6: Final answer
   x = 7,523.52