Finding the Fourth Proportional to 12,648.50, 17,454.94 and 7,059.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,648.50 : 17,454.94 = 7,059.50 : x
2. Step 2: Convert to fraction form
   12,648.50/17,454.94 = 7,059.50/x
3. Step 3: Cross multiply
   12,648.50x = 17,454.94 × 7,059.50
4. Step 4: Simplify right side
   12,648.50x = 123,223,148.93
5. Step 5: Solve for x
   x = 123,223,148.93/12,648.50
6. Step 6: Final answer
   x = 9,742.12