Finding the Fourth Proportional to 7,978.48, 11,008.72 and 4,441.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,978.48 : 11,008.72 = 4,441.52 : x
2. Step 2: Convert to fraction form
   7,978.48/11,008.72 = 4,441.52/x
3. Step 3: Cross multiply
   7,978.48x = 11,008.72 × 4,441.52
4. Step 4: Simplify right side
   7,978.48x = 48,895,450.05
5. Step 5: Solve for x
   x = 48,895,450.05/7,978.48
6. Step 6: Final answer
   x = 6,128.42