Finding the Fourth Proportional to 12,015.36, 16,572.06 and 10,339.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,015.36 : 16,572.06 = 10,339.59 : x
2. Step 2: Convert to fraction form
   12,015.36/16,572.06 = 10,339.59/x
3. Step 3: Cross multiply
   12,015.36x = 16,572.06 × 10,339.59
4. Step 4: Simplify right side
   12,015.36x = 171,348,305.86
5. Step 5: Solve for x
   x = 171,348,305.86/12,015.36
6. Step 6: Final answer
   x = 14,260.77