Finding the Fourth Proportional to 12,998.72, 19,500.16 and 4,232.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,998.72 : 19,500.16 = 4,232.96 : x
2. Step 2: Convert to fraction form
   12,998.72/19,500.16 = 4,232.96/x
3. Step 3: Cross multiply
   12,998.72x = 19,500.16 × 4,232.96
4. Step 4: Simplify right side
   12,998.72x = 82,543,397.27
5. Step 5: Solve for x
   x = 82,543,397.27/12,998.72
6. Step 6: Final answer
   x = 6,350.12