Finding the Fourth Proportional to 31,796.85, 47,697.18 and 8,423.22

Step by Step Solution

1. Step 1: Write the proportion equation
   31,796.85 : 47,697.18 = 8,423.22 : x
2. Step 2: Convert to fraction form
   31,796.85/47,697.18 = 8,423.22/x
3. Step 3: Cross multiply
   31,796.85x = 47,697.18 × 8,423.22
4. Step 4: Simplify right side
   31,796.85x = 401,763,840.52
5. Step 5: Solve for x
   x = 401,763,840.52/31,796.85
6. Step 6: Final answer
   x = 12,635.33