Finding the Fourth Proportional to 245,399.05, 368,103.25 and 76,915.68

Step by Step Solution

1. Step 1: Write the proportion equation
   245,399.05 : 368,103.25 = 76,915.68 : x
2. Step 2: Convert to fraction form
   245,399.05/368,103.25 = 76,915.68/x
3. Step 3: Cross multiply
   245,399.05x = 368,103.25 × 76,915.68
4. Step 4: Simplify right side
   245,399.05x = 28,312,910,499.72
5. Step 5: Solve for x
   x = 28,312,910,499.72/245,399.05
6. Step 6: Final answer
   x = 115,374.98