Finding the Fourth Proportional to 12,836.18, 19,238.52 and 7,294.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,836.18 : 19,238.52 = 7,294.16 : x
2. Step 2: Convert to fraction form
   12,836.18/19,238.52 = 7,294.16/x
3. Step 3: Cross multiply
   12,836.18x = 19,238.52 × 7,294.16
4. Step 4: Simplify right side
   12,836.18x = 140,328,843.04
5. Step 5: Solve for x
   x = 140,328,843.04/12,836.18
6. Step 6: Final answer
   x = 10,932.29