Finding the Fourth Proportional to 15,238.29, 21,019.59 and 9,274.14

Step by Step Solution

1. Step 1: Write the proportion equation
   15,238.29 : 21,019.59 = 9,274.14 : x
2. Step 2: Convert to fraction form
   15,238.29/21,019.59 = 9,274.14/x
3. Step 3: Cross multiply
   15,238.29x = 21,019.59 × 9,274.14
4. Step 4: Simplify right side
   15,238.29x = 194,938,620.40
5. Step 5: Solve for x
   x = 194,938,620.40/15,238.29
6. Step 6: Final answer
   x = 12,792.68