Finding the Fourth Proportional to 8,743.42, 12,066.60 and 4,967.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,743.42 : 12,066.60 = 4,967.20 : x
2. Step 2: Convert to fraction form
   8,743.42/12,066.60 = 4,967.20/x
3. Step 3: Cross multiply
   8,743.42x = 12,066.60 × 4,967.20
4. Step 4: Simplify right side
   8,743.42x = 59,937,215.52
5. Step 5: Solve for x
   x = 59,937,215.52/8,743.42
6. Step 6: Final answer
   x = 6,855.12