Finding the Fourth Proportional to 21,179.59, 29,227.98 and 11,748.76

Step by Step Solution

1. Step 1: Write the proportion equation
   21,179.59 : 29,227.98 = 11,748.76 : x
2. Step 2: Convert to fraction form
   21,179.59/29,227.98 = 11,748.76/x
3. Step 3: Cross multiply
   21,179.59x = 29,227.98 × 11,748.76
4. Step 4: Simplify right side
   21,179.59x = 343,392,522.30
5. Step 5: Solve for x
   x = 343,392,522.30/21,179.59
6. Step 6: Final answer
   x = 16,213.37