Finding the Fourth Proportional to 12,433.02, 18,640.22 and 7,501.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,433.02 : 18,640.22 = 7,501.49 : x
2. Step 2: Convert to fraction form
   12,433.02/18,640.22 = 7,501.49/x
3. Step 3: Cross multiply
   12,433.02x = 18,640.22 × 7,501.49
4. Step 4: Simplify right side
   12,433.02x = 139,829,433.02
5. Step 5: Solve for x
   x = 139,829,433.02/12,433.02
6. Step 6: Final answer
   x = 11,246.62