Finding the Fourth Proportional to 21,434.58, 29,569.83 and 13,883.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,434.58 : 29,569.83 = 13,883.42 : x
2. Step 2: Convert to fraction form
   21,434.58/29,569.83 = 13,883.42/x
3. Step 3: Cross multiply
   21,434.58x = 29,569.83 × 13,883.42
4. Step 4: Simplify right side
   21,434.58x = 410,530,221.37
5. Step 5: Solve for x
   x = 410,530,221.37/21,434.58
6. Step 6: Final answer
   x = 19,152.71