Finding the Fourth Proportional to 12,394.71, 17,104.23 and 7,090.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,394.71 : 17,104.23 = 7,090.02 : x
2. Step 2: Convert to fraction form
   12,394.71/17,104.23 = 7,090.02/x
3. Step 3: Cross multiply
   12,394.71x = 17,104.23 × 7,090.02
4. Step 4: Simplify right side
   12,394.71x = 121,269,332.78
5. Step 5: Solve for x
   x = 121,269,332.78/12,394.71
6. Step 6: Final answer
   x = 9,783.96