Finding the Fourth Proportional to 23,728.71, 35,581.05 and 7,928.10

Step by Step Solution

1. Step 1: Write the proportion equation
   23,728.71 : 35,581.05 = 7,928.10 : x
2. Step 2: Convert to fraction form
   23,728.71/35,581.05 = 7,928.10/x
3. Step 3: Cross multiply
   23,728.71x = 35,581.05 × 7,928.10
4. Step 4: Simplify right side
   23,728.71x = 282,090,122.51
5. Step 5: Solve for x
   x = 282,090,122.51/23,728.71
6. Step 6: Final answer
   x = 11,888.14