Finding the Fourth Proportional to 17,872.74, 24,667.34 and 9,917.53

Step by Step Solution

1. Step 1: Write the proportion equation
   17,872.74 : 24,667.34 = 9,917.53 : x
2. Step 2: Convert to fraction form
   17,872.74/24,667.34 = 9,917.53/x
3. Step 3: Cross multiply
   17,872.74x = 24,667.34 × 9,917.53
4. Step 4: Simplify right side
   17,872.74x = 244,638,973.21
5. Step 5: Solve for x
   x = 244,638,973.21/17,872.74
6. Step 6: Final answer
   x = 13,687.83