Finding the Fourth Proportional to 16,186.16, 22,335.54 and 9,897.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,186.16 : 22,335.54 = 9,897.32 : x
2. Step 2: Convert to fraction form
   16,186.16/22,335.54 = 9,897.32/x
3. Step 3: Cross multiply
   16,186.16x = 22,335.54 × 9,897.32
4. Step 4: Simplify right side
   16,186.16x = 221,061,986.75
5. Step 5: Solve for x
   x = 221,061,986.75/16,186.16
6. Step 6: Final answer
   x = 13,657.47