Finding the Fourth Proportional to 8,801.66, 12,141.69 and 5,443.40

Step by Step Solution

1. Step 1: Write the proportion equation
   8,801.66 : 12,141.69 = 5,443.40 : x
2. Step 2: Convert to fraction form
   8,801.66/12,141.69 = 5,443.40/x
3. Step 3: Cross multiply
   8,801.66x = 12,141.69 × 5,443.40
4. Step 4: Simplify right side
   8,801.66x = 66,092,075.35
5. Step 5: Solve for x
   x = 66,092,075.35/8,801.66
6. Step 6: Final answer
   x = 7,509.05