Finding the Fourth Proportional to 21,624.57, 29,834.90 and 12,062.91

Step by Step Solution

1. Step 1: Write the proportion equation
   21,624.57 : 29,834.90 = 12,062.91 : x
2. Step 2: Convert to fraction form
   21,624.57/29,834.90 = 12,062.91/x
3. Step 3: Cross multiply
   21,624.57x = 29,834.90 × 12,062.91
4. Step 4: Simplify right side
   21,624.57x = 359,895,642.54
5. Step 5: Solve for x
   x = 359,895,642.54/21,624.57
6. Step 6: Final answer
   x = 16,642.90