Finding the Fourth Proportional to 21,174.21, 31,773.47 and 8,023.05

Step by Step Solution

1. Step 1: Write the proportion equation
   21,174.21 : 31,773.47 = 8,023.05 : x
2. Step 2: Convert to fraction form
   21,174.21/31,773.47 = 8,023.05/x
3. Step 3: Cross multiply
   21,174.21x = 31,773.47 × 8,023.05
4. Step 4: Simplify right side
   21,174.21x = 254,920,098.37
5. Step 5: Solve for x
   x = 254,920,098.37/21,174.21
6. Step 6: Final answer
   x = 12,039.18