Finding the Fourth Proportional to 17,936.72, 24,749.82 and 9,978.92

Step by Step Solution

1. Step 1: Write the proportion equation
   17,936.72 : 24,749.82 = 9,978.92 : x
2. Step 2: Convert to fraction form
   17,936.72/24,749.82 = 9,978.92/x
3. Step 3: Cross multiply
   17,936.72x = 24,749.82 × 9,978.92
4. Step 4: Simplify right side
   17,936.72x = 246,976,473.79
5. Step 5: Solve for x
   x = 246,976,473.79/17,936.72
6. Step 6: Final answer
   x = 13,769.32