Finding the Fourth Proportional to 12,380.86, 17,085.50 and 6,715.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,380.86 : 17,085.50 = 6,715.48 : x
2. Step 2: Convert to fraction form
   12,380.86/17,085.50 = 6,715.48/x
3. Step 3: Cross multiply
   12,380.86x = 17,085.50 × 6,715.48
4. Step 4: Simplify right side
   12,380.86x = 114,737,333.54
5. Step 5: Solve for x
   x = 114,737,333.54/12,380.86
6. Step 6: Final answer
   x = 9,267.32