Finding the Fourth Proportional to 8,891.42, 12,269.32 and 5,699.08

Step by Step Solution

1. Step 1: Write the proportion equation
   8,891.42 : 12,269.32 = 5,699.08 : x
2. Step 2: Convert to fraction form
   8,891.42/12,269.32 = 5,699.08/x
3. Step 3: Cross multiply
   8,891.42x = 12,269.32 × 5,699.08
4. Step 4: Simplify right side
   8,891.42x = 69,923,836.23
5. Step 5: Solve for x
   x = 69,923,836.23/8,891.42
6. Step 6: Final answer
   x = 7,864.19