Finding the Fourth Proportional to 50,078.28, 69,109.06 and 30,960.84

Step by Step Solution

1. Step 1: Write the proportion equation
   50,078.28 : 69,109.06 = 30,960.84 : x
2. Step 2: Convert to fraction form
   50,078.28/69,109.06 = 30,960.84/x
3. Step 3: Cross multiply
   50,078.28x = 69,109.06 × 30,960.84
4. Step 4: Simplify right side
   50,078.28x = 2,139,674,549.21
5. Step 5: Solve for x
   x = 2,139,674,549.21/50,078.28
6. Step 6: Final answer
   x = 42,726.60