Finding the Fourth Proportional to 143,788.24, 215,711.52 and 50,359.60

Step by Step Solution

1. Step 1: Write the proportion equation
   143,788.24 : 215,711.52 = 50,359.60 : x
2. Step 2: Convert to fraction form
   143,788.24/215,711.52 = 50,359.60/x
3. Step 3: Cross multiply
   143,788.24x = 215,711.52 × 50,359.60
4. Step 4: Simplify right side
   143,788.24x = 10,863,145,862.59
5. Step 5: Solve for x
   x = 10,863,145,862.59/143,788.24
6. Step 6: Final answer
   x = 75,549.61