Finding the Fourth Proportional to 5,436.52, 7,502.82 and 3,078.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,436.52 : 7,502.82 = 3,078.76 : x
2. Step 2: Convert to fraction form
   5,436.52/7,502.82 = 3,078.76/x
3. Step 3: Cross multiply
   5,436.52x = 7,502.82 × 3,078.76
4. Step 4: Simplify right side
   5,436.52x = 23,099,382.10
5. Step 5: Solve for x
   x = 23,099,382.10/5,436.52
6. Step 6: Final answer
   x = 4,248.93