Finding the Fourth Proportional to 50,180.76, 69,213.18 and 42,615.15

Step by Step Solution

1. Step 1: Write the proportion equation
   50,180.76 : 69,213.18 = 42,615.15 : x
2. Step 2: Convert to fraction form
   50,180.76/69,213.18 = 42,615.15/x
3. Step 3: Cross multiply
   50,180.76x = 69,213.18 × 42,615.15
4. Step 4: Simplify right side
   50,180.76x = 2,949,530,047.68
5. Step 5: Solve for x
   x = 2,949,530,047.68/50,180.76
6. Step 6: Final answer
   x = 58,778.11