Finding the Fourth Proportional to 86,139.02, 118,845.12 and 50,303.18

Step by Step Solution

1. Step 1: Write the proportion equation
   86,139.02 : 118,845.12 = 50,303.18 : x
2. Step 2: Convert to fraction form
   86,139.02/118,845.12 = 50,303.18/x
3. Step 3: Cross multiply
   86,139.02x = 118,845.12 × 50,303.18
4. Step 4: Simplify right side
   86,139.02x = 5,978,287,463.48
5. Step 5: Solve for x
   x = 5,978,287,463.48/86,139.02
6. Step 6: Final answer
   x = 69,402.78