Finding the Fourth Proportional to 236,738.82, 355,109.55 and 78,966.84

Step by Step Solution

1. Step 1: Write the proportion equation
   236,738.82 : 355,109.55 = 78,966.84 : x
2. Step 2: Convert to fraction form
   236,738.82/355,109.55 = 78,966.84/x
3. Step 3: Cross multiply
   236,738.82x = 355,109.55 × 78,966.84
4. Step 4: Simplify right side
   236,738.82x = 28,041,879,017.32
5. Step 5: Solve for x
   x = 28,041,879,017.32/236,738.82
6. Step 6: Final answer
   x = 118,450.70