Finding the Fourth Proportional to 12,494.71, 17,243.36 and 7,191.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,494.71 : 17,243.36 = 7,191.23 : x
2. Step 2: Convert to fraction form
   12,494.71/17,243.36 = 7,191.23/x
3. Step 3: Cross multiply
   12,494.71x = 17,243.36 × 7,191.23
4. Step 4: Simplify right side
   12,494.71x = 124,001,028.82
5. Step 5: Solve for x
   x = 124,001,028.82/12,494.71
6. Step 6: Final answer
   x = 9,924.28