Finding the Fourth Proportional to 8,958.97, 12,364.55 and 5,422.24

Step by Step Solution

1. Step 1: Write the proportion equation
   8,958.97 : 12,364.55 = 5,422.24 : x
2. Step 2: Convert to fraction form
   8,958.97/12,364.55 = 5,422.24/x
3. Step 3: Cross multiply
   8,958.97x = 12,364.55 × 5,422.24
4. Step 4: Simplify right side
   8,958.97x = 67,043,557.59
5. Step 5: Solve for x
   x = 67,043,557.59/8,958.97
6. Step 6: Final answer
   x = 7,483.40