Finding the Fourth Proportional to 16,200.29, 22,356.88 and 9,485.29

Step by Step Solution

1. Step 1: Write the proportion equation
   16,200.29 : 22,356.88 = 9,485.29 : x
2. Step 2: Convert to fraction form
   16,200.29/22,356.88 = 9,485.29/x
3. Step 3: Cross multiply
   16,200.29x = 22,356.88 × 9,485.29
4. Step 4: Simplify right side
   16,200.29x = 212,061,494.53
5. Step 5: Solve for x
   x = 212,061,494.53/16,200.29
6. Step 6: Final answer
   x = 13,089.98