Finding the Fourth Proportional to 6,288.72, 9,426.96 and 3,516.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,288.72 : 9,426.96 = 3,516.72 : x
2. Step 2: Convert to fraction form
   6,288.72/9,426.96 = 3,516.72/x
3. Step 3: Cross multiply
   6,288.72x = 9,426.96 × 3,516.72
4. Step 4: Simplify right side
   6,288.72x = 33,151,978.77
5. Step 5: Solve for x
   x = 33,151,978.77/6,288.72
6. Step 6: Final answer
   x = 5,271.66