Finding the Fourth Proportional to 8,419.50, 11,617.55 and 5,061.51

Step by Step Solution

1. Step 1: Write the proportion equation
   8,419.50 : 11,617.55 = 5,061.51 : x
2. Step 2: Convert to fraction form
   8,419.50/11,617.55 = 5,061.51/x
3. Step 3: Cross multiply
   8,419.50x = 11,617.55 × 5,061.51
4. Step 4: Simplify right side
   8,419.50x = 58,802,262.11
5. Step 5: Solve for x
   x = 58,802,262.11/8,419.50
6. Step 6: Final answer
   x = 6,984.06