Finding the Fourth Proportional to 10,928.66, 15,086.99 and 7,410.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,928.66 : 15,086.99 = 7,410.29 : x
2. Step 2: Convert to fraction form
   10,928.66/15,086.99 = 7,410.29/x
3. Step 3: Cross multiply
   10,928.66x = 15,086.99 × 7,410.29
4. Step 4: Simplify right side
   10,928.66x = 111,798,914.22
5. Step 5: Solve for x
   x = 111,798,914.22/10,928.66
6. Step 6: Final answer
   x = 10,229.89