Finding the Fourth Proportional to 12,600.65, 17,389.61 and 7,223.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,600.65 : 17,389.61 = 7,223.98 : x
2. Step 2: Convert to fraction form
   12,600.65/17,389.61 = 7,223.98/x
3. Step 3: Cross multiply
   12,600.65x = 17,389.61 × 7,223.98
4. Step 4: Simplify right side
   12,600.65x = 125,622,194.85
5. Step 5: Solve for x
   x = 125,622,194.85/12,600.65
6. Step 6: Final answer
   x = 9,969.50