Finding the Fourth Proportional to 21,808.47, 32,662.88 and 13,025.37

Step by Step Solution

1. Step 1: Write the proportion equation
   21,808.47 : 32,662.88 = 13,025.37 : x
2. Step 2: Convert to fraction form
   21,808.47/32,662.88 = 13,025.37/x
3. Step 3: Cross multiply
   21,808.47x = 32,662.88 × 13,025.37
4. Step 4: Simplify right side
   21,808.47x = 425,446,097.27
5. Step 5: Solve for x
   x = 425,446,097.27/21,808.47
6. Step 6: Final answer
   x = 19,508.30