Finding the Fourth Proportional to 12,641.92, 17,444.64 and 7,053.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,641.92 : 17,444.64 = 7,053.28 : x
2. Step 2: Convert to fraction form
   12,641.92/17,444.64 = 7,053.28/x
3. Step 3: Cross multiply
   12,641.92x = 17,444.64 × 7,053.28
4. Step 4: Simplify right side
   12,641.92x = 123,041,930.42
5. Step 5: Solve for x
   x = 123,041,930.42/12,641.92
6. Step 6: Final answer
   x = 9,732.85