Finding the Fourth Proportional to 86,209.10, 118,950.72 and 50,392.17

Step by Step Solution

1. Step 1: Write the proportion equation
   86,209.10 : 118,950.72 = 50,392.17 : x
2. Step 2: Convert to fraction form
   86,209.10/118,950.72 = 50,392.17/x
3. Step 3: Cross multiply
   86,209.10x = 118,950.72 × 50,392.17
4. Step 4: Simplify right side
   86,209.10x = 5,994,184,903.86
5. Step 5: Solve for x
   x = 5,994,184,903.86/86,209.10
6. Step 6: Final answer
   x = 69,530.77