Finding the Fourth Proportional to 96,519.72, 133,196.83 and 54,078.15

Step by Step Solution

1. Step 1: Write the proportion equation
   96,519.72 : 133,196.83 = 54,078.15 : x
2. Step 2: Convert to fraction form
   96,519.72/133,196.83 = 54,078.15/x
3. Step 3: Cross multiply
   96,519.72x = 133,196.83 × 54,078.15
4. Step 4: Simplify right side
   96,519.72x = 7,203,037,919.42
5. Step 5: Solve for x
   x = 7,203,037,919.42/96,519.72
6. Step 6: Final answer
   x = 74,627.63