Finding the Fourth Proportional to 50,629.31, 69,261.25 and 50,416.08

Step by Step Solution

1. Step 1: Write the proportion equation
   50,629.31 : 69,261.25 = 50,416.08 : x
2. Step 2: Convert to fraction form
   50,629.31/69,261.25 = 50,416.08/x
3. Step 3: Cross multiply
   50,629.31x = 69,261.25 × 50,416.08
4. Step 4: Simplify right side
   50,629.31x = 3,491,880,720.90
5. Step 5: Solve for x
   x = 3,491,880,720.90/50,629.31
6. Step 6: Final answer
   x = 68,969.55