Finding the Fourth Proportional to 21,873.78, 32,815.89 and 7,082.70

Step by Step Solution

1. Step 1: Write the proportion equation
   21,873.78 : 32,815.89 = 7,082.70 : x
2. Step 2: Convert to fraction form
   21,873.78/32,815.89 = 7,082.70/x
3. Step 3: Cross multiply
   21,873.78x = 32,815.89 × 7,082.70
4. Step 4: Simplify right side
   21,873.78x = 232,425,104.10
5. Step 5: Solve for x
   x = 232,425,104.10/21,873.78
6. Step 6: Final answer
   x = 10,625.74