Finding the Fourth Proportional to 22,374.10, 30,873.85 and 12,940.82

Step by Step Solution

1. Step 1: Write the proportion equation
   22,374.10 : 30,873.85 = 12,940.82 : x
2. Step 2: Convert to fraction form
   22,374.10/30,873.85 = 12,940.82/x
3. Step 3: Cross multiply
   22,374.10x = 30,873.85 × 12,940.82
4. Step 4: Simplify right side
   22,374.10x = 399,532,935.56
5. Step 5: Solve for x
   x = 399,532,935.56/22,374.10
6. Step 6: Final answer
   x = 17,856.94