Finding the Fourth Proportional to 21,434.37, 32,021.17 and 13,876.35

Step by Step Solution

1. Step 1: Write the proportion equation
   21,434.37 : 32,021.17 = 13,876.35 : x
2. Step 2: Convert to fraction form
   21,434.37/32,021.17 = 13,876.35/x
3. Step 3: Cross multiply
   21,434.37x = 32,021.17 × 13,876.35
4. Step 4: Simplify right side
   21,434.37x = 444,337,099.75
5. Step 5: Solve for x
   x = 444,337,099.75/21,434.37
6. Step 6: Final answer
   x = 20,730.12