Finding the Fourth Proportional to 5,216.78, 7,208.52 and 4,269.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,216.78 : 7,208.52 = 4,269.89 : x
2. Step 2: Convert to fraction form
   5,216.78/7,208.52 = 4,269.89/x
3. Step 3: Cross multiply
   5,216.78x = 7,208.52 × 4,269.89
4. Step 4: Simplify right side
   5,216.78x = 30,779,587.46
5. Step 5: Solve for x
   x = 30,779,587.46/5,216.78
6. Step 6: Final answer
   x = 5,900.11