Finding the Fourth Proportional to 12,493.96, 17,242.33 and 7,190.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,493.96 : 17,242.33 = 7,190.48 : x
2. Step 2: Convert to fraction form
   12,493.96/17,242.33 = 7,190.48/x
3. Step 3: Cross multiply
   12,493.96x = 17,242.33 × 7,190.48
4. Step 4: Simplify right side
   12,493.96x = 123,980,654.15
5. Step 5: Solve for x
   x = 123,980,654.15/12,493.96
6. Step 6: Final answer
   x = 9,923.25