Finding the Fourth Proportional to 50,142.28, 69,196.32 and 30,000

Step by Step Solution

1. Step 1: Write the proportion equation
   50,142.28 : 69,196.32 = 30,000 : x
2. Step 2: Convert to fraction form
   50,142.28/69,196.32 = 30,000/x
3. Step 3: Cross multiply
   50,142.28x = 69,196.32 × 30,000
4. Step 4: Simplify right side
   50,142.28x = 2,075,889,600.00
5. Step 5: Solve for x
   x = 2,075,889,600.00/50,142.28
6. Step 6: Final answer
   x = 41,399.98