Finding the Fourth Proportional to 204,491, 306,863.98 and 78,142.52

Step by Step Solution

1. Step 1: Write the proportion equation
   204,491 : 306,863.98 = 78,142.52 : x
2. Step 2: Convert to fraction form
   204,491/306,863.98 = 78,142.52/x
3. Step 3: Cross multiply
   204,491x = 306,863.98 × 78,142.52
4. Step 4: Simplify right side
   204,491x = 23,979,124,694.43
5. Step 5: Solve for x
   x = 23,979,124,694.43/204,491
6. Step 6: Final answer
   x = 117,262.49