Finding the Fourth Proportional to 8,703.72, 13,052.16 and 3,156.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,703.72 : 13,052.16 = 3,156.12 : x
2. Step 2: Convert to fraction form
   8,703.72/13,052.16 = 3,156.12/x
3. Step 3: Cross multiply
   8,703.72x = 13,052.16 × 3,156.12
4. Step 4: Simplify right side
   8,703.72x = 41,194,183.22
5. Step 5: Solve for x
   x = 41,194,183.22/8,703.72
6. Step 6: Final answer
   x = 4,732.94