Finding the Fourth Proportional to 8,796.47, 12,143.06 and 5,613.98

Step by Step Solution

1. Step 1: Write the proportion equation
   8,796.47 : 12,143.06 = 5,613.98 : x
2. Step 2: Convert to fraction form
   8,796.47/12,143.06 = 5,613.98/x
3. Step 3: Cross multiply
   8,796.47x = 12,143.06 × 5,613.98
4. Step 4: Simplify right side
   8,796.47x = 68,170,962.28
5. Step 5: Solve for x
   x = 68,170,962.28/8,796.47
6. Step 6: Final answer
   x = 7,749.81