Finding the Fourth Proportional to 12,487.37, 17,233.58 and 7,772.36

Step by Step Solution

1. Step 1: Write the proportion equation
   12,487.37 : 17,233.58 = 7,772.36 : x
2. Step 2: Convert to fraction form
   12,487.37/17,233.58 = 7,772.36/x
3. Step 3: Cross multiply
   12,487.37x = 17,233.58 × 7,772.36
4. Step 4: Simplify right side
   12,487.37x = 133,945,587.85
5. Step 5: Solve for x
   x = 133,945,587.85/12,487.37
6. Step 6: Final answer
   x = 10,726.49