Finding the Fourth Proportional to 12,394.72, 17,105.52 and 7,090.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,394.72 : 17,105.52 = 7,090.24 : x
2. Step 2: Convert to fraction form
   12,394.72/17,105.52 = 7,090.24/x
3. Step 3: Cross multiply
   12,394.72x = 17,105.52 × 7,090.24
4. Step 4: Simplify right side
   12,394.72x = 121,282,242.12
5. Step 5: Solve for x
   x = 121,282,242.12/12,394.72
6. Step 6: Final answer
   x = 9,784.99