Finding the Fourth Proportional to 16,607.50, 22,916.52 and 9,892.21

Step by Step Solution

1. Step 1: Write the proportion equation
   16,607.50 : 22,916.52 = 9,892.21 : x
2. Step 2: Convert to fraction form
   16,607.50/22,916.52 = 9,892.21/x
3. Step 3: Cross multiply
   16,607.50x = 22,916.52 × 9,892.21
4. Step 4: Simplify right side
   16,607.50x = 226,695,028.31
5. Step 5: Solve for x
   x = 226,695,028.31/16,607.50
6. Step 6: Final answer
   x = 13,650.16