Finding the Fourth Proportional to 12,073.64, 16,667.89 and 9,378.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,073.64 : 16,667.89 = 9,378.83 : x
2. Step 2: Convert to fraction form
   12,073.64/16,667.89 = 9,378.83/x
3. Step 3: Cross multiply
   12,073.64x = 16,667.89 × 9,378.83
4. Step 4: Simplify right side
   12,073.64x = 156,325,220.98
5. Step 5: Solve for x
   x = 156,325,220.98/12,073.64
6. Step 6: Final answer
   x = 12,947.64