Finding the Fourth Proportional to 12,150.06, 16,767.86 and 9,160.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,150.06 : 16,767.86 = 9,160.62 : x
2. Step 2: Convert to fraction form
   12,150.06/16,767.86 = 9,160.62/x
3. Step 3: Cross multiply
   12,150.06x = 16,767.86 × 9,160.62
4. Step 4: Simplify right side
   12,150.06x = 153,603,947.87
5. Step 5: Solve for x
   x = 153,603,947.87/12,150.06
6. Step 6: Final answer
   x = 12,642.24