Finding the Fourth Proportional to 12,334.56, 17,020.17 and 7,856.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,334.56 : 17,020.17 = 7,856.48 : x
2. Step 2: Convert to fraction form
   12,334.56/17,020.17 = 7,856.48/x
3. Step 3: Cross multiply
   12,334.56x = 17,020.17 × 7,856.48
4. Step 4: Simplify right side
   12,334.56x = 133,718,540.10
5. Step 5: Solve for x
   x = 133,718,540.10/12,334.56
6. Step 6: Final answer
   x = 10,840.97