Finding the Fourth Proportional to 14,446.61, 19,938.60 and 8,783.12

Step by Step Solution

1. Step 1: Write the proportion equation
   14,446.61 : 19,938.60 = 8,783.12 : x
2. Step 2: Convert to fraction form
   14,446.61/19,938.60 = 8,783.12/x
3. Step 3: Cross multiply
   14,446.61x = 19,938.60 × 8,783.12
4. Step 4: Simplify right side
   14,446.61x = 175,123,116.43
5. Step 5: Solve for x
   x = 175,123,116.43/14,446.61
6. Step 6: Final answer
   x = 12,122.09