Finding the Fourth Proportional to 86,212.96, 118,971.69 and 49,909.37

Step by Step Solution

1. Step 1: Write the proportion equation
   86,212.96 : 118,971.69 = 49,909.37 : x
2. Step 2: Convert to fraction form
   86,212.96/118,971.69 = 49,909.37/x
3. Step 3: Cross multiply
   86,212.96x = 118,971.69 × 49,909.37
4. Step 4: Simplify right side
   86,212.96x = 5,937,801,313.72
5. Step 5: Solve for x
   x = 5,937,801,313.72/86,212.96
6. Step 6: Final answer
   x = 68,873.65