Finding the Fourth Proportional to 11,620.86, 17,428.82 and 3,825.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,620.86 : 17,428.82 = 3,825.42 : x
2. Step 2: Convert to fraction form
   11,620.86/17,428.82 = 3,825.42/x
3. Step 3: Cross multiply
   11,620.86x = 17,428.82 × 3,825.42
4. Step 4: Simplify right side
   11,620.86x = 66,672,556.60
5. Step 5: Solve for x
   x = 66,672,556.60/11,620.86
6. Step 6: Final answer
   x = 5,737.32