Finding the Fourth Proportional to 86,139.51, 118,845.81 and 50,303.67

Step by Step Solution

1. Step 1: Write the proportion equation
   86,139.51 : 118,845.81 = 50,303.67 : x
2. Step 2: Convert to fraction form
   86,139.51/118,845.81 = 50,303.67/x
3. Step 3: Cross multiply
   86,139.51x = 118,845.81 × 50,303.67
4. Step 4: Simplify right side
   86,139.51x = 5,978,380,407.12
5. Step 5: Solve for x
   x = 5,978,380,407.12/86,139.51
6. Step 6: Final answer
   x = 69,403.46