Finding the Fourth Proportional to 22,300.71, 30,774.96 and 12,229.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,300.71 : 30,774.96 = 12,229.31 : x
2. Step 2: Convert to fraction form
   22,300.71/30,774.96 = 12,229.31/x
3. Step 3: Cross multiply
   22,300.71x = 30,774.96 × 12,229.31
4. Step 4: Simplify right side
   22,300.71x = 376,356,526.08
5. Step 5: Solve for x
   x = 376,356,526.08/22,300.71
6. Step 6: Final answer
   x = 16,876.44