Finding the Fourth Proportional to 12,609.84, 17,399.28 and 7,302.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,609.84 : 17,399.28 = 7,302.72 : x
2. Step 2: Convert to fraction form
   12,609.84/17,399.28 = 7,302.72/x
3. Step 3: Cross multiply
   12,609.84x = 17,399.28 × 7,302.72
4. Step 4: Simplify right side
   12,609.84x = 127,062,070.04
5. Step 5: Solve for x
   x = 127,062,070.04/12,609.84
6. Step 6: Final answer
   x = 10,076.42