Finding the Fourth Proportional to 50,097.99, 69,141.20 and 30,990.44

Step by Step Solution

1. Step 1: Write the proportion equation
   50,097.99 : 69,141.20 = 30,990.44 : x
2. Step 2: Convert to fraction form
   50,097.99/69,141.20 = 30,990.44/x
3. Step 3: Cross multiply
   50,097.99x = 69,141.20 × 30,990.44
4. Step 4: Simplify right side
   50,097.99x = 2,142,715,709.47
5. Step 5: Solve for x
   x = 2,142,715,709.47/50,097.99
6. Step 6: Final answer
   x = 42,770.49