Finding the Fourth Proportional to 12,353.48, 17,047.64 and 7,048.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,353.48 : 17,047.64 = 7,048.40 : x
2. Step 2: Convert to fraction form
   12,353.48/17,047.64 = 7,048.40/x
3. Step 3: Cross multiply
   12,353.48x = 17,047.64 × 7,048.40
4. Step 4: Simplify right side
   12,353.48x = 120,158,585.78
5. Step 5: Solve for x
   x = 120,158,585.78/12,353.48
6. Step 6: Final answer
   x = 9,726.70