Finding the Fourth Proportional to 21,333.42, 29,446.02 and 12,383.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,333.42 : 29,446.02 = 12,383.82 : x
2. Step 2: Convert to fraction form
   21,333.42/29,446.02 = 12,383.82/x
3. Step 3: Cross multiply
   21,333.42x = 29,446.02 × 12,383.82
4. Step 4: Simplify right side
   21,333.42x = 364,654,211.40
5. Step 5: Solve for x
   x = 364,654,211.40/21,333.42
6. Step 6: Final answer
   x = 17,093.10