Finding the Fourth Proportional to 8,736.64, 12,060.88 and 5,956.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,736.64 : 12,060.88 = 5,956.72 : x
2. Step 2: Convert to fraction form
   8,736.64/12,060.88 = 5,956.72/x
3. Step 3: Cross multiply
   8,736.64x = 12,060.88 × 5,956.72
4. Step 4: Simplify right side
   8,736.64x = 71,843,285.11
5. Step 5: Solve for x
   x = 71,843,285.11/8,736.64
6. Step 6: Final answer
   x = 8,223.22