Finding the Fourth Proportional to 12,404.74, 17,118.81 and 6,816.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,404.74 : 17,118.81 = 6,816.10 : x
2. Step 2: Convert to fraction form
   12,404.74/17,118.81 = 6,816.10/x
3. Step 3: Cross multiply
   12,404.74x = 17,118.81 × 6,816.10
4. Step 4: Simplify right side
   12,404.74x = 116,683,520.84
5. Step 5: Solve for x
   x = 116,683,520.84/12,404.74
6. Step 6: Final answer
   x = 9,406.37