Finding the Fourth Proportional to 5,061.60, 7,563.20 and 3,869.08

Step by Step Solution

1. Step 1: Write the proportion equation
   5,061.60 : 7,563.20 = 3,869.08 : x
2. Step 2: Convert to fraction form
   5,061.60/7,563.20 = 3,869.08/x
3. Step 3: Cross multiply
   5,061.60x = 7,563.20 × 3,869.08
4. Step 4: Simplify right side
   5,061.60x = 29,262,625.86
5. Step 5: Solve for x
   x = 29,262,625.86/5,061.60
6. Step 6: Final answer
   x = 5,781.30