Finding the Fourth Proportional to 21,499.52, 29,707.82 and 16,819.34

Step by Step Solution

1. Step 1: Write the proportion equation
   21,499.52 : 29,707.82 = 16,819.34 : x
2. Step 2: Convert to fraction form
   21,499.52/29,707.82 = 16,819.34/x
3. Step 3: Cross multiply
   21,499.52x = 29,707.82 × 16,819.34
4. Step 4: Simplify right side
   21,499.52x = 499,665,925.24
5. Step 5: Solve for x
   x = 499,665,925.24/21,499.52
6. Step 6: Final answer
   x = 23,240.79