Finding the Fourth Proportional to 12,485.04, 17,223.54 and 7,700.97

Step by Step Solution

1. Step 1: Write the proportion equation
   12,485.04 : 17,223.54 = 7,700.97 : x
2. Step 2: Convert to fraction form
   12,485.04/17,223.54 = 7,700.97/x
3. Step 3: Cross multiply
   12,485.04x = 17,223.54 × 7,700.97
4. Step 4: Simplify right side
   12,485.04x = 132,638,000.54
5. Step 5: Solve for x
   x = 132,638,000.54/12,485.04
6. Step 6: Final answer
   x = 10,623.76