Finding the Fourth Proportional to 12,090.42, 16,684.92 and 6,785.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,090.42 : 16,684.92 = 6,785.10 : x
2. Step 2: Convert to fraction form
   12,090.42/16,684.92 = 6,785.10/x
3. Step 3: Cross multiply
   12,090.42x = 16,684.92 × 6,785.10
4. Step 4: Simplify right side
   12,090.42x = 113,208,850.69
5. Step 5: Solve for x
   x = 113,208,850.69/12,090.42
6. Step 6: Final answer
   x = 9,363.52