Finding the Fourth Proportional to 10,582.78, 15,875.24 and 3,921.07

Step by Step Solution

1. Step 1: Write the proportion equation
   10,582.78 : 15,875.24 = 3,921.07 : x
2. Step 2: Convert to fraction form
   10,582.78/15,875.24 = 3,921.07/x
3. Step 3: Cross multiply
   10,582.78x = 15,875.24 × 3,921.07
4. Step 4: Simplify right side
   10,582.78x = 62,247,927.31
5. Step 5: Solve for x
   x = 62,247,927.31/10,582.78
6. Step 6: Final answer
   x = 5,882.00