Finding the Fourth Proportional to 10,859.93, 16,281.69 and 8,667.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,859.93 : 16,281.69 = 8,667.46 : x
2. Step 2: Convert to fraction form
   10,859.93/16,281.69 = 8,667.46/x
3. Step 3: Cross multiply
   10,859.93x = 16,281.69 × 8,667.46
4. Step 4: Simplify right side
   10,859.93x = 141,120,896.81
5. Step 5: Solve for x
   x = 141,120,896.81/10,859.93
6. Step 6: Final answer
   x = 12,994.64