Finding the Fourth Proportional to 12,015.04, 16,565.76 and 9,185.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,015.04 : 16,565.76 = 9,185.92 : x
2. Step 2: Convert to fraction form
   12,015.04/16,565.76 = 9,185.92/x
3. Step 3: Cross multiply
   12,015.04x = 16,565.76 × 9,185.92
4. Step 4: Simplify right side
   12,015.04x = 152,171,746.10
5. Step 5: Solve for x
   x = 152,171,746.10/12,015.04
6. Step 6: Final answer
   x = 12,665.11