Finding the Fourth Proportional to 21,444.83, 29,595.42 and 12,949.02

Step by Step Solution

1. Step 1: Write the proportion equation
   21,444.83 : 29,595.42 = 12,949.02 : x
2. Step 2: Convert to fraction form
   21,444.83/29,595.42 = 12,949.02/x
3. Step 3: Cross multiply
   21,444.83x = 29,595.42 × 12,949.02
4. Step 4: Simplify right side
   21,444.83x = 383,231,685.49
5. Step 5: Solve for x
   x = 383,231,685.49/21,444.83
6. Step 6: Final answer
   x = 17,870.59