Finding the Fourth Proportional to 16,656.06, 22,985.31 and 9,102.43

Step by Step Solution

1. Step 1: Write the proportion equation
   16,656.06 : 22,985.31 = 9,102.43 : x
2. Step 2: Convert to fraction form
   16,656.06/22,985.31 = 9,102.43/x
3. Step 3: Cross multiply
   16,656.06x = 22,985.31 × 9,102.43
4. Step 4: Simplify right side
   16,656.06x = 209,222,175.30
5. Step 5: Solve for x
   x = 209,222,175.30/16,656.06
6. Step 6: Final answer
   x = 12,561.32