Finding the Fourth Proportional to 5,317.89, 7,335.37 and 3,827.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,317.89 : 7,335.37 = 3,827.78 : x
2. Step 2: Convert to fraction form
   5,317.89/7,335.37 = 3,827.78/x
3. Step 3: Cross multiply
   5,317.89x = 7,335.37 × 3,827.78
4. Step 4: Simplify right side
   5,317.89x = 28,078,182.58
5. Step 5: Solve for x
   x = 28,078,182.58/5,317.89
6. Step 6: Final answer
   x = 5,279.95