Finding the Fourth Proportional to 50,494.56, 69,679.52 and 28,979.34

Step by Step Solution

1. Step 1: Write the proportion equation
   50,494.56 : 69,679.52 = 28,979.34 : x
2. Step 2: Convert to fraction form
   50,494.56/69,679.52 = 28,979.34/x
3. Step 3: Cross multiply
   50,494.56x = 69,679.52 × 28,979.34
4. Step 4: Simplify right side
   50,494.56x = 2,019,266,501.12
5. Step 5: Solve for x
   x = 2,019,266,501.12/50,494.56
6. Step 6: Final answer
   x = 39,989.78