Finding the Fourth Proportional to 10,812.58, 16,213.83 and 5,617.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,812.58 : 16,213.83 = 5,617.06 : x
2. Step 2: Convert to fraction form
   10,812.58/16,213.83 = 5,617.06/x
3. Step 3: Cross multiply
   10,812.58x = 16,213.83 × 5,617.06
4. Step 4: Simplify right side
   10,812.58x = 91,074,055.94
5. Step 5: Solve for x
   x = 91,074,055.94/10,812.58
6. Step 6: Final answer
   x = 8,422.97