Finding the Fourth Proportional to 10,667.86, 16,005.94 and 4,426.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,667.86 : 16,005.94 = 4,426.27 : x
2. Step 2: Convert to fraction form
   10,667.86/16,005.94 = 4,426.27/x
3. Step 3: Cross multiply
   10,667.86x = 16,005.94 × 4,426.27
4. Step 4: Simplify right side
   10,667.86x = 70,846,560.96
5. Step 5: Solve for x
   x = 70,846,560.96/10,667.86
6. Step 6: Final answer
   x = 6,641.12