Finding the Fourth Proportional to 86,238.18, 118,965.15 and 50,404.77

Step by Step Solution

1. Step 1: Write the proportion equation
   86,238.18 : 118,965.15 = 50,404.77 : x
2. Step 2: Convert to fraction form
   86,238.18/118,965.15 = 50,404.77/x
3. Step 3: Cross multiply
   86,238.18x = 118,965.15 × 50,404.77
4. Step 4: Simplify right side
   86,238.18x = 5,996,411,023.77
5. Step 5: Solve for x
   x = 5,996,411,023.77/86,238.18
6. Step 6: Final answer
   x = 69,533.14