Finding the Fourth Proportional to 50,142.72, 69,178.62 and 30,000.16

Step by Step Solution

1. Step 1: Write the proportion equation
   50,142.72 : 69,178.62 = 30,000.16 : x
2. Step 2: Convert to fraction form
   50,142.72/69,178.62 = 30,000.16/x
3. Step 3: Cross multiply
   50,142.72x = 69,178.62 × 30,000.16
4. Step 4: Simplify right side
   50,142.72x = 2,075,369,668.58
5. Step 5: Solve for x
   x = 2,075,369,668.58/50,142.72
6. Step 6: Final answer
   x = 41,389.25