Finding the Fourth Proportional to 5,509.47, 8,278.52 and 5,149.52

Step by Step Solution

1. Step 1: Write the proportion equation
   5,509.47 : 8,278.52 = 5,149.52 : x
2. Step 2: Convert to fraction form
   5,509.47/8,278.52 = 5,149.52/x
3. Step 3: Cross multiply
   5,509.47x = 8,278.52 × 5,149.52
4. Step 4: Simplify right side
   5,509.47x = 42,630,337.17
5. Step 5: Solve for x
   x = 42,630,337.17/5,509.47
6. Step 6: Final answer
   x = 7,737.65