Finding the Fourth Proportional to 42,980.28, 64,449.72 and 33,596.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42,980.28 : 64,449.72 = 33,596.52 : x
2. Step 2: Convert to fraction form
   42,980.28/64,449.72 = 33,596.52/x
3. Step 3: Cross multiply
   42,980.28x = 64,449.72 × 33,596.52
4. Step 4: Simplify right side
   42,980.28x = 2,165,286,306.97
5. Step 5: Solve for x
   x = 2,165,286,306.97/42,980.28
6. Step 6: Final answer
   x = 50,378.60