Finding the Fourth Proportional to 50,478.76, 69,688.62 and 30,340.52

Step by Step Solution

1. Step 1: Write the proportion equation
   50,478.76 : 69,688.62 = 30,340.52 : x
2. Step 2: Convert to fraction form
   50,478.76/69,688.62 = 30,340.52/x
3. Step 3: Cross multiply
   50,478.76x = 69,688.62 × 30,340.52
4. Step 4: Simplify right side
   50,478.76x = 2,114,388,968.88
5. Step 5: Solve for x
   x = 2,114,388,968.88/50,478.76
6. Step 6: Final answer
   x = 41,886.71