Finding the Fourth Proportional to 17,998.78, 27,002.13 and 5,520.52

Step by Step Solution

1. Step 1: Write the proportion equation
   17,998.78 : 27,002.13 = 5,520.52 : x
2. Step 2: Convert to fraction form
   17,998.78/27,002.13 = 5,520.52/x
3. Step 3: Cross multiply
   17,998.78x = 27,002.13 × 5,520.52
4. Step 4: Simplify right side
   17,998.78x = 149,065,798.71
5. Step 5: Solve for x
   x = 149,065,798.71/17,998.78
6. Step 6: Final answer
   x = 8,281.99