Finding the Fourth Proportional to 300,442.05, 450,633.87 and 78,826.05

Step by Step Solution

1. Step 1: Write the proportion equation
   300,442.05 : 450,633.87 = 78,826.05 : x
2. Step 2: Convert to fraction form
   300,442.05/450,633.87 = 78,826.05/x
3. Step 3: Cross multiply
   300,442.05x = 450,633.87 × 78,826.05
4. Step 4: Simplify right side
   300,442.05x = 35,521,687,968.31
5. Step 5: Solve for x
   x = 35,521,687,968.31/300,442.05
6. Step 6: Final answer
   x = 118,231.41