Finding the Fourth Proportional to 16,064.94, 22,158.18 and 9,777.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,064.94 : 22,158.18 = 9,777.72 : x
2. Step 2: Convert to fraction form
   16,064.94/22,158.18 = 9,777.72/x
3. Step 3: Cross multiply
   16,064.94x = 22,158.18 × 9,777.72
4. Step 4: Simplify right side
   16,064.94x = 216,656,479.75
5. Step 5: Solve for x
   x = 216,656,479.75/16,064.94
6. Step 6: Final answer
   x = 13,486.29