Finding the Fourth Proportional to 12,039.21, 16,614.17 and 7,003.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,039.21 : 16,614.17 = 7,003.57 : x
2. Step 2: Convert to fraction form
   12,039.21/16,614.17 = 7,003.57/x
3. Step 3: Cross multiply
   12,039.21x = 16,614.17 × 7,003.57
4. Step 4: Simplify right side
   12,039.21x = 116,358,502.59
5. Step 5: Solve for x
   x = 116,358,502.59/12,039.21
6. Step 6: Final answer
   x = 9,664.96