Finding the Fourth Proportional to 12,859.46, 17,751.83 and 7,554.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,859.46 : 17,751.83 = 7,554.61 : x
2. Step 2: Convert to fraction form
   12,859.46/17,751.83 = 7,554.61/x
3. Step 3: Cross multiply
   12,859.46x = 17,751.83 × 7,554.61
4. Step 4: Simplify right side
   12,859.46x = 134,108,025.90
5. Step 5: Solve for x
   x = 134,108,025.90/12,859.46
6. Step 6: Final answer
   x = 10,428.74