Finding the Fourth Proportional to 245,016.63, 367,447.19 and 78,765.75

Step by Step Solution

1. Step 1: Write the proportion equation
   245,016.63 : 367,447.19 = 78,765.75 : x
2. Step 2: Convert to fraction form
   245,016.63/367,447.19 = 78,765.75/x
3. Step 3: Cross multiply
   245,016.63x = 367,447.19 × 78,765.75
4. Step 4: Simplify right side
   245,016.63x = 28,942,253,111.91
5. Step 5: Solve for x
   x = 28,942,253,111.91/245,016.63
6. Step 6: Final answer
   x = 118,123.63