Finding the Fourth Proportional to 50,120.59, 69,140.15 and 30,994.26

Step by Step Solution

1. Step 1: Write the proportion equation
   50,120.59 : 69,140.15 = 30,994.26 : x
2. Step 2: Convert to fraction form
   50,120.59/69,140.15 = 30,994.26/x
3. Step 3: Cross multiply
   50,120.59x = 69,140.15 × 30,994.26
4. Step 4: Simplify right side
   50,120.59x = 2,142,947,863.02
5. Step 5: Solve for x
   x = 2,142,947,863.02/50,120.59
6. Step 6: Final answer
   x = 42,755.84