Finding the Fourth Proportional to 7,048.32, 10,578.72 and 4,122.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,048.32 : 10,578.72 = 4,122.72 : x
2. Step 2: Convert to fraction form
   7,048.32/10,578.72 = 4,122.72/x
3. Step 3: Cross multiply
   7,048.32x = 10,578.72 × 4,122.72
4. Step 4: Simplify right side
   7,048.32x = 43,613,100.52
5. Step 5: Solve for x
   x = 43,613,100.52/7,048.32
6. Step 6: Final answer
   x = 6,187.73