Finding the Fourth Proportional to 143,516.88, 215,276.40 and 50,022.72

Step by Step Solution

1. Step 1: Write the proportion equation
   143,516.88 : 215,276.40 = 50,022.72 : x
2. Step 2: Convert to fraction form
   143,516.88/215,276.40 = 50,022.72/x
3. Step 3: Cross multiply
   143,516.88x = 215,276.40 × 50,022.72
4. Step 4: Simplify right side
   143,516.88x = 10,768,711,079.81
5. Step 5: Solve for x
   x = 10,768,711,079.81/143,516.88
6. Step 6: Final answer
   x = 75,034.46