Finding the Fourth Proportional to 21,200.94, 29,255.99 and 11,769.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,200.94 : 29,255.99 = 11,769.50 : x
2. Step 2: Convert to fraction form
   21,200.94/29,255.99 = 11,769.50/x
3. Step 3: Cross multiply
   21,200.94x = 29,255.99 × 11,769.50
4. Step 4: Simplify right side
   21,200.94x = 344,328,388.60
5. Step 5: Solve for x
   x = 344,328,388.60/21,200.94
6. Step 6: Final answer
   x = 16,241.18