Finding the Fourth Proportional to 9,818.94, 13,550.12 and 5,570.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,818.94 : 13,550.12 = 5,570.84 : x
2. Step 2: Convert to fraction form
   9,818.94/13,550.12 = 5,570.84/x
3. Step 3: Cross multiply
   9,818.94x = 13,550.12 × 5,570.84
4. Step 4: Simplify right side
   9,818.94x = 75,485,482.75
5. Step 5: Solve for x
   x = 75,485,482.75/9,818.94
6. Step 6: Final answer
   x = 7,687.74