Finding the Fourth Proportional to 12,357.86, 17,049.62 and 7,048.85

Step by Step Solution

1. Step 1: Write the proportion equation
   12,357.86 : 17,049.62 = 7,048.85 : x
2. Step 2: Convert to fraction form
   12,357.86/17,049.62 = 7,048.85/x
3. Step 3: Cross multiply
   12,357.86x = 17,049.62 × 7,048.85
4. Step 4: Simplify right side
   12,357.86x = 120,180,146.31
5. Step 5: Solve for x
   x = 120,180,146.31/12,357.86
6. Step 6: Final answer
   x = 9,725.00