Finding the Fourth Proportional to 12,404.24, 17,117.80 and 6,815.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,404.24 : 17,117.80 = 6,815.12 : x
2. Step 2: Convert to fraction form
   12,404.24/17,117.80 = 6,815.12/x
3. Step 3: Cross multiply
   12,404.24x = 17,117.80 × 6,815.12
4. Step 4: Simplify right side
   12,404.24x = 116,659,861.14
5. Step 5: Solve for x
   x = 116,659,861.14/12,404.24
6. Step 6: Final answer
   x = 9,404.84