Finding the Fourth Proportional to 103,766.72, 143,198.32 and 60,738.40

Step by Step Solution

1. Step 1: Write the proportion equation
   103,766.72 : 143,198.32 = 60,738.40 : x
2. Step 2: Convert to fraction form
   103,766.72/143,198.32 = 60,738.40/x
3. Step 3: Cross multiply
   103,766.72x = 143,198.32 × 60,738.40
4. Step 4: Simplify right side
   103,766.72x = 8,697,636,839.49
5. Step 5: Solve for x
   x = 8,697,636,839.49/103,766.72
6. Step 6: Final answer
   x = 83,819.14