Finding the Fourth Proportional to 12,642.38, 17,447.03 and 7,053.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,642.38 : 17,447.03 = 7,053.38 : x
2. Step 2: Convert to fraction form
   12,642.38/17,447.03 = 7,053.38/x
3. Step 3: Cross multiply
   12,642.38x = 17,447.03 × 7,053.38
4. Step 4: Simplify right side
   12,642.38x = 123,060,409.96
5. Step 5: Solve for x
   x = 123,060,409.96/12,642.38
6. Step 6: Final answer
   x = 9,733.96