Finding the Fourth Proportional to 12,494.03, 17,243.64 and 7,188.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,494.03 : 17,243.64 = 7,188.48 : x
2. Step 2: Convert to fraction form
   12,494.03/17,243.64 = 7,188.48/x
3. Step 3: Cross multiply
   12,494.03x = 17,243.64 × 7,188.48
4. Step 4: Simplify right side
   12,494.03x = 123,955,561.27
5. Step 5: Solve for x
   x = 123,955,561.27/12,494.03
6. Step 6: Final answer
   x = 9,921.19