Finding the Fourth Proportional to 8,613.36, 12,941.67 and 5,494.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,613.36 : 12,941.67 = 5,494.80 : x
2. Step 2: Convert to fraction form
   8,613.36/12,941.67 = 5,494.80/x
3. Step 3: Cross multiply
   8,613.36x = 12,941.67 × 5,494.80
4. Step 4: Simplify right side
   8,613.36x = 71,111,888.32
5. Step 5: Solve for x
   x = 71,111,888.32/8,613.36
6. Step 6: Final answer
   x = 8,256.00