Finding the Fourth Proportional to 143,603.28, 215,307.72 and 50,058

Step by Step Solution

1. Step 1: Write the proportion equation
   143,603.28 : 215,307.72 = 50,058 : x
2. Step 2: Convert to fraction form
   143,603.28/215,307.72 = 50,058/x
3. Step 3: Cross multiply
   143,603.28x = 215,307.72 × 50,058
4. Step 4: Simplify right side
   143,603.28x = 10,777,873,847.76
5. Step 5: Solve for x
   x = 10,777,873,847.76/143,603.28
6. Step 6: Final answer
   x = 75,053.12