Finding the Fourth Proportional to 10,845.33, 16,267.89 and 8,667.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,845.33 : 16,267.89 = 8,667.90 : x
2. Step 2: Convert to fraction form
   10,845.33/16,267.89 = 8,667.90/x
3. Step 3: Cross multiply
   10,845.33x = 16,267.89 × 8,667.90
4. Step 4: Simplify right side
   10,845.33x = 141,008,443.73
5. Step 5: Solve for x
   x = 141,008,443.73/10,845.33
6. Step 6: Final answer
   x = 13,001.77