Finding the Fourth Proportional to 3,678.78, 5,521.82 and 2,993.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,678.78 : 5,521.82 = 2,993.52 : x
2. Step 2: Convert to fraction form
   3,678.78/5,521.82 = 2,993.52/x
3. Step 3: Cross multiply
   3,678.78x = 5,521.82 × 2,993.52
4. Step 4: Simplify right side
   3,678.78x = 16,529,678.61
5. Step 5: Solve for x
   x = 16,529,678.61/3,678.78
6. Step 6: Final answer
   x = 4,493.25