Finding the Fourth Proportional to 22,301.71, 30,776.34 and 12,230.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,301.71 : 30,776.34 = 12,230.31 : x
2. Step 2: Convert to fraction form
   22,301.71/30,776.34 = 12,230.31/x
3. Step 3: Cross multiply
   22,301.71x = 30,776.34 × 12,230.31
4. Step 4: Simplify right side
   22,301.71x = 376,404,178.87
5. Step 5: Solve for x
   x = 376,404,178.87/22,301.71
6. Step 6: Final answer
   x = 16,877.82