Finding the Fourth Proportional to 14,215.32, 19,617.23 and 7,928.10

Step by Step Solution

1. Step 1: Write the proportion equation
   14,215.32 : 19,617.23 = 7,928.10 : x
2. Step 2: Convert to fraction form
   14,215.32/19,617.23 = 7,928.10/x
3. Step 3: Cross multiply
   14,215.32x = 19,617.23 × 7,928.10
4. Step 4: Simplify right side
   14,215.32x = 155,527,361.16
5. Step 5: Solve for x
   x = 155,527,361.16/14,215.32
6. Step 6: Final answer
   x = 10,940.83