Finding the Fourth Proportional to 23,724.78, 35,591.50 and 7,928.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,724.78 : 35,591.50 = 7,928.31 : x
2. Step 2: Convert to fraction form
   23,724.78/35,591.50 = 7,928.31/x
3. Step 3: Cross multiply
   23,724.78x = 35,591.50 × 7,928.31
4. Step 4: Simplify right side
   23,724.78x = 282,180,445.37
5. Step 5: Solve for x
   x = 282,180,445.37/23,724.78
6. Step 6: Final answer
   x = 11,893.91