Finding the Fourth Proportional to 40,069.50, 60,105.06 and 12,367.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,069.50 : 60,105.06 = 12,367.50 : x
2. Step 2: Convert to fraction form
   40,069.50/60,105.06 = 12,367.50/x
3. Step 3: Cross multiply
   40,069.50x = 60,105.06 × 12,367.50
4. Step 4: Simplify right side
   40,069.50x = 743,349,329.55
5. Step 5: Solve for x
   x = 743,349,329.55/40,069.50
6. Step 6: Final answer
   x = 18,551.50