Finding the Fourth Proportional to 12,834.93, 19,236.50 and 7,271.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,834.93 : 19,236.50 = 7,271.42 : x
2. Step 2: Convert to fraction form
   12,834.93/19,236.50 = 7,271.42/x
3. Step 3: Cross multiply
   12,834.93x = 19,236.50 × 7,271.42
4. Step 4: Simplify right side
   12,834.93x = 139,876,565.56
5. Step 5: Solve for x
   x = 139,876,565.56/12,834.93
6. Step 6: Final answer
   x = 10,898.11