Finding the Fourth Proportional to 22,439.79, 30,966.74 and 12,368.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,439.79 : 30,966.74 = 12,368.25 : x
2. Step 2: Convert to fraction form
   22,439.79/30,966.74 = 12,368.25/x
3. Step 3: Cross multiply
   22,439.79x = 30,966.74 × 12,368.25
4. Step 4: Simplify right side
   22,439.79x = 383,004,490.34
5. Step 5: Solve for x
   x = 383,004,490.34/22,439.79
6. Step 6: Final answer
   x = 17,068.09