Finding the Fourth Proportional to 5,552.94, 7,652.50 and 3,978.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,552.94 : 7,652.50 = 3,978.30 : x
2. Step 2: Convert to fraction form
   5,552.94/7,652.50 = 3,978.30/x
3. Step 3: Cross multiply
   5,552.94x = 7,652.50 × 3,978.30
4. Step 4: Simplify right side
   5,552.94x = 30,443,940.75
5. Step 5: Solve for x
   x = 30,443,940.75/5,552.94
6. Step 6: Final answer
   x = 5,482.49