Finding the Fourth Proportional to 8,942.22, 13,393.89 and 4,315.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,942.22 : 13,393.89 = 4,315.50 : x
2. Step 2: Convert to fraction form
   8,942.22/13,393.89 = 4,315.50/x
3. Step 3: Cross multiply
   8,942.22x = 13,393.89 × 4,315.50
4. Step 4: Simplify right side
   8,942.22x = 57,801,332.30
5. Step 5: Solve for x
   x = 57,801,332.30/8,942.22
6. Step 6: Final answer
   x = 6,463.87