Finding the Fourth Proportional to 86,142.51, 118,849.95 and 50,306.67

Step by Step Solution

1. Step 1: Write the proportion equation
   86,142.51 : 118,849.95 = 50,306.67 : x
2. Step 2: Convert to fraction form
   86,142.51/118,849.95 = 50,306.67/x
3. Step 3: Cross multiply
   86,142.51x = 118,849.95 × 50,306.67
4. Step 4: Simplify right side
   86,142.51x = 5,978,945,214.17
5. Step 5: Solve for x
   x = 5,978,945,214.17/86,142.51
6. Step 6: Final answer
   x = 69,407.60