Finding the Fourth Proportional to 8,960.59, 12,362.30 and 5,422.51

Step by Step Solution

1. Step 1: Write the proportion equation
   8,960.59 : 12,362.30 = 5,422.51 : x
2. Step 2: Convert to fraction form
   8,960.59/12,362.30 = 5,422.51/x
3. Step 3: Cross multiply
   8,960.59x = 12,362.30 × 5,422.51
4. Step 4: Simplify right side
   8,960.59x = 67,034,633.56
5. Step 5: Solve for x
   x = 67,034,633.56/8,960.59
6. Step 6: Final answer
   x = 7,481.06