Finding the Fourth Proportional to 5,436.78, 7,502.22 and 3,340.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,436.78 : 7,502.22 = 3,340.86 : x
2. Step 2: Convert to fraction form
   5,436.78/7,502.22 = 3,340.86/x
3. Step 3: Cross multiply
   5,436.78x = 7,502.22 × 3,340.86
4. Step 4: Simplify right side
   5,436.78x = 25,063,866.71
5. Step 5: Solve for x
   x = 25,063,866.71/5,436.78
6. Step 6: Final answer
   x = 4,610.06