Finding the Fourth Proportional to 6,886.48, 9,503.52 and 3,902.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,886.48 : 9,503.52 = 3,902.72 : x
2. Step 2: Convert to fraction form
   6,886.48/9,503.52 = 3,902.72/x
3. Step 3: Cross multiply
   6,886.48x = 9,503.52 × 3,902.72
4. Step 4: Simplify right side
   6,886.48x = 37,089,577.57
5. Step 5: Solve for x
   x = 37,089,577.57/6,886.48
6. Step 6: Final answer
   x = 5,385.85