Finding the Fourth Proportional to 16,065.51, 22,158.96 and 9,778.29

Step by Step Solution

1. Step 1: Write the proportion equation
   16,065.51 : 22,158.96 = 9,778.29 : x
2. Step 2: Convert to fraction form
   16,065.51/22,158.96 = 9,778.29/x
3. Step 3: Cross multiply
   16,065.51x = 22,158.96 × 9,778.29
4. Step 4: Simplify right side
   16,065.51x = 216,676,736.98
5. Step 5: Solve for x
   x = 216,676,736.98/16,065.51
6. Step 6: Final answer
   x = 13,487.07