Finding the Fourth Proportional to 21,285, 29,373.29 and 12,337.69

Step by Step Solution

1. Step 1: Write the proportion equation
   21,285 : 29,373.29 = 12,337.69 : x
2. Step 2: Convert to fraction form
   21,285/29,373.29 = 12,337.69/x
3. Step 3: Cross multiply
   21,285x = 29,373.29 × 12,337.69
4. Step 4: Simplify right side
   21,285x = 362,398,546.30
5. Step 5: Solve for x
   x = 362,398,546.30/21,285
6. Step 6: Final answer
   x = 17,026.01