Finding the Fourth Proportional to 13,262.72, 18,302.56 and 7,294.79

Step by Step Solution

1. Step 1: Write the proportion equation
   13,262.72 : 18,302.56 = 7,294.79 : x
2. Step 2: Convert to fraction form
   13,262.72/18,302.56 = 7,294.79/x
3. Step 3: Cross multiply
   13,262.72x = 18,302.56 × 7,294.79
4. Step 4: Simplify right side
   13,262.72x = 133,513,359.18
5. Step 5: Solve for x
   x = 133,513,359.18/13,262.72
6. Step 6: Final answer
   x = 10,066.82