Finding the Fourth Proportional to 12,665.70, 17,483.04 and 8,699.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,665.70 : 17,483.04 = 8,699.94 : x
2. Step 2: Convert to fraction form
   12,665.70/17,483.04 = 8,699.94/x
3. Step 3: Cross multiply
   12,665.70x = 17,483.04 × 8,699.94
4. Step 4: Simplify right side
   12,665.70x = 152,101,399.02
5. Step 5: Solve for x
   x = 152,101,399.02/12,665.70
6. Step 6: Final answer
   x = 12,008.92