Finding the Fourth Proportional to 22,374.88, 30,883.56 and 12,820.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,374.88 : 30,883.56 = 12,820.12 : x
2. Step 2: Convert to fraction form
   22,374.88/30,883.56 = 12,820.12/x
3. Step 3: Cross multiply
   22,374.88x = 30,883.56 × 12,820.12
4. Step 4: Simplify right side
   22,374.88x = 395,930,945.23
5. Step 5: Solve for x
   x = 395,930,945.23/22,374.88
6. Step 6: Final answer
   x = 17,695.33