Finding the Fourth Proportional to 86,244.18, 118,973.42 and 50,410.78

Step by Step Solution

1. Step 1: Write the proportion equation
   86,244.18 : 118,973.42 = 50,410.78 : x
2. Step 2: Convert to fraction form
   86,244.18/118,973.42 = 50,410.78/x
3. Step 3: Cross multiply
   86,244.18x = 118,973.42 × 50,410.78
4. Step 4: Simplify right side
   86,244.18x = 5,997,542,901.47
5. Step 5: Solve for x
   x = 5,997,542,901.47/86,244.18
6. Step 6: Final answer
   x = 69,541.42