Finding the Fourth Proportional to 21,443.83, 29,594.04 and 12,948.02

Step by Step Solution

1. Step 1: Write the proportion equation
   21,443.83 : 29,594.04 = 12,948.02 : x
2. Step 2: Convert to fraction form
   21,443.83/29,594.04 = 12,948.02/x
3. Step 3: Cross multiply
   21,443.83x = 29,594.04 × 12,948.02
4. Step 4: Simplify right side
   21,443.83x = 383,184,221.80
5. Step 5: Solve for x
   x = 383,184,221.80/21,443.83
6. Step 6: Final answer
   x = 17,869.21