Finding the Fourth Proportional to 10,665.37, 15,985.59 and 8,024.39

Step by Step Solution

1. Step 1: Write the proportion equation
   10,665.37 : 15,985.59 = 8,024.39 : x
2. Step 2: Convert to fraction form
   10,665.37/15,985.59 = 8,024.39/x
3. Step 3: Cross multiply
   10,665.37x = 15,985.59 × 8,024.39
4. Step 4: Simplify right side
   10,665.37x = 128,274,588.64
5. Step 5: Solve for x
   x = 128,274,588.64/10,665.37
6. Step 6: Final answer
   x = 12,027.21