Finding the Fourth Proportional to 12,493.37, 17,241.62 and 7,188.07

Step by Step Solution

1. Step 1: Write the proportion equation
   12,493.37 : 17,241.62 = 7,188.07 : x
2. Step 2: Convert to fraction form
   12,493.37/17,241.62 = 7,188.07/x
3. Step 3: Cross multiply
   12,493.37x = 17,241.62 × 7,188.07
4. Step 4: Simplify right side
   12,493.37x = 123,933,971.47
5. Step 5: Solve for x
   x = 123,933,971.47/12,493.37
6. Step 6: Final answer
   x = 9,919.98