Finding the Fourth Proportional to 12,938.76, 17,853.12 and 7,273.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,938.76 : 17,853.12 = 7,273.62 : x
2. Step 2: Convert to fraction form
   12,938.76/17,853.12 = 7,273.62/x
3. Step 3: Cross multiply
   12,938.76x = 17,853.12 × 7,273.62
4. Step 4: Simplify right side
   12,938.76x = 129,856,810.69
5. Step 5: Solve for x
   x = 129,856,810.69/12,938.76
6. Step 6: Final answer
   x = 10,036.26