Finding the Fourth Proportional to 16,496.81, 22,758.50 and 9,778.84

Step by Step Solution

1. Step 1: Write the proportion equation
   16,496.81 : 22,758.50 = 9,778.84 : x
2. Step 2: Convert to fraction form
   16,496.81/22,758.50 = 9,778.84/x
3. Step 3: Cross multiply
   16,496.81x = 22,758.50 × 9,778.84
4. Step 4: Simplify right side
   16,496.81x = 222,551,697.69
5. Step 5: Solve for x
   x = 222,551,697.69/16,496.81
6. Step 6: Final answer
   x = 13,490.59