Finding the Fourth Proportional to 12,018.62, 18,035.24 and 4,623.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,018.62 : 18,035.24 = 4,623.72 : x
2. Step 2: Convert to fraction form
   12,018.62/18,035.24 = 4,623.72/x
3. Step 3: Cross multiply
   12,018.62x = 18,035.24 × 4,623.72
4. Step 4: Simplify right side
   12,018.62x = 83,389,899.89
5. Step 5: Solve for x
   x = 83,389,899.89/12,018.62
6. Step 6: Final answer
   x = 6,938.39