Finding the Fourth Proportional to 8,849.78, 12,212.33 and 5,658.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,849.78 : 12,212.33 = 5,658.58 : x
2. Step 2: Convert to fraction form
   8,849.78/12,212.33 = 5,658.58/x
3. Step 3: Cross multiply
   8,849.78x = 12,212.33 × 5,658.58
4. Step 4: Simplify right side
   8,849.78x = 69,104,387.47
5. Step 5: Solve for x
   x = 69,104,387.47/8,849.78
6. Step 6: Final answer
   x = 7,808.60