Finding the Fourth Proportional to 17,158.03, 23,680.55 and 9,888.71

Step by Step Solution

1. Step 1: Write the proportion equation
   17,158.03 : 23,680.55 = 9,888.71 : x
2. Step 2: Convert to fraction form
   17,158.03/23,680.55 = 9,888.71/x
3. Step 3: Cross multiply
   17,158.03x = 23,680.55 × 9,888.71
4. Step 4: Simplify right side
   17,158.03x = 234,169,997.91
5. Step 5: Solve for x
   x = 234,169,997.91/17,158.03
6. Step 6: Final answer
   x = 13,647.84