Finding the Fourth Proportional to 16,538.84, 22,823.52 and 8,985.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,538.84 : 22,823.52 = 8,985.12 : x
2. Step 2: Convert to fraction form
   16,538.84/22,823.52 = 8,985.12/x
3. Step 3: Cross multiply
   16,538.84x = 22,823.52 × 8,985.12
4. Step 4: Simplify right side
   16,538.84x = 205,072,066.02
5. Step 5: Solve for x
   x = 205,072,066.02/16,538.84
6. Step 6: Final answer
   x = 12,399.42