Finding the Fourth Proportional to 12,834.76, 19,233.71 and 7,557.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,834.76 : 19,233.71 = 7,557.31 : x
2. Step 2: Convert to fraction form
   12,834.76/19,233.71 = 7,557.31/x
3. Step 3: Cross multiply
   12,834.76x = 19,233.71 × 7,557.31
4. Step 4: Simplify right side
   12,834.76x = 145,355,108.92
5. Step 5: Solve for x
   x = 145,355,108.92/12,834.76
6. Step 6: Final answer
   x = 11,325.11