Finding the Fourth Proportional to 22,580.83, 33,838.44 and 12,669.60

Step by Step Solution

1. Step 1: Write the proportion equation
   22,580.83 : 33,838.44 = 12,669.60 : x
2. Step 2: Convert to fraction form
   22,580.83/33,838.44 = 12,669.60/x
3. Step 3: Cross multiply
   22,580.83x = 33,838.44 × 12,669.60
4. Step 4: Simplify right side
   22,580.83x = 428,719,499.42
5. Step 5: Solve for x
   x = 428,719,499.42/22,580.83
6. Step 6: Final answer
   x = 18,985.99