Finding the Fourth Proportional to 10,958.73, 16,426.23 and 4,377.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,958.73 : 16,426.23 = 4,377.68 : x
2. Step 2: Convert to fraction form
   10,958.73/16,426.23 = 4,377.68/x
3. Step 3: Cross multiply
   10,958.73x = 16,426.23 × 4,377.68
4. Step 4: Simplify right side
   10,958.73x = 71,908,741.60
5. Step 5: Solve for x
   x = 71,908,741.60/10,958.73
6. Step 6: Final answer
   x = 6,561.78