Finding the Fourth Proportional to 12,040.48, 18,061.53 and 4,645

Step by Step Solution

1. Step 1: Write the proportion equation
   12,040.48 : 18,061.53 = 4,645 : x
2. Step 2: Convert to fraction form
   12,040.48/18,061.53 = 4,645/x
3. Step 3: Cross multiply
   12,040.48x = 18,061.53 × 4,645
4. Step 4: Simplify right side
   12,040.48x = 83,895,806.85
5. Step 5: Solve for x
   x = 83,895,806.85/12,040.48
6. Step 6: Final answer
   x = 6,967.81