Finding the Fourth Proportional to 245,392.45, 368,093.30 and 76,909.05

Step by Step Solution

1. Step 1: Write the proportion equation
   245,392.45 : 368,093.30 = 76,909.05 : x
2. Step 2: Convert to fraction form
   245,392.45/368,093.30 = 76,909.05/x
3. Step 3: Cross multiply
   245,392.45x = 368,093.30 × 76,909.05
4. Step 4: Simplify right side
   245,392.45x = 28,309,705,629.82
5. Step 5: Solve for x
   x = 28,309,705,629.82/245,392.45
6. Step 6: Final answer
   x = 115,365.02