Finding the Fourth Proportional to 9,820.60, 13,548.98 and 5,571.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,820.60 : 13,548.98 = 5,571.08 : x
2. Step 2: Convert to fraction form
   9,820.60/13,548.98 = 5,571.08/x
3. Step 3: Cross multiply
   9,820.60x = 13,548.98 × 5,571.08
4. Step 4: Simplify right side
   9,820.60x = 75,482,451.50
5. Step 5: Solve for x
   x = 75,482,451.50/9,820.60
6. Step 6: Final answer
   x = 7,686.13