Finding the Fourth Proportional to 18,488.88, 27,730.22 and 5,337.72

Step by Step Solution

1. Step 1: Write the proportion equation
   18,488.88 : 27,730.22 = 5,337.72 : x
2. Step 2: Convert to fraction form
   18,488.88/27,730.22 = 5,337.72/x
3. Step 3: Cross multiply
   18,488.88x = 27,730.22 × 5,337.72
4. Step 4: Simplify right side
   18,488.88x = 148,016,149.90
5. Step 5: Solve for x
   x = 148,016,149.90/18,488.88
6. Step 6: Final answer
   x = 8,005.69