Finding the Fourth Proportional to 13,019.72, 17,967.26 and 7,354.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,019.72 : 17,967.26 = 7,354.72 : x
2. Step 2: Convert to fraction form
   13,019.72/17,967.26 = 7,354.72/x
3. Step 3: Cross multiply
   13,019.72x = 17,967.26 × 7,354.72
4. Step 4: Simplify right side
   13,019.72x = 132,144,166.47
5. Step 5: Solve for x
   x = 132,144,166.47/13,019.72
6. Step 6: Final answer
   x = 10,149.54