Finding the Fourth Proportional to 7,375.80, 10,178.72 and 4,018.61

Step by Step Solution

1. Step 1: Write the proportion equation
   7,375.80 : 10,178.72 = 4,018.61 : x
2. Step 2: Convert to fraction form
   7,375.80/10,178.72 = 4,018.61/x
3. Step 3: Cross multiply
   7,375.80x = 10,178.72 × 4,018.61
4. Step 4: Simplify right side
   7,375.80x = 40,904,344.86
5. Step 5: Solve for x
   x = 40,904,344.86/7,375.80
6. Step 6: Final answer
   x = 5,545.75