Finding the Fourth Proportional to 49,843.42, 68,789.40 and 30,719.32

Step by Step Solution

1. Step 1: Write the proportion equation
   49,843.42 : 68,789.40 = 30,719.32 : x
2. Step 2: Convert to fraction form
   49,843.42/68,789.40 = 30,719.32/x
3. Step 3: Cross multiply
   49,843.42x = 68,789.40 × 30,719.32
4. Step 4: Simplify right side
   49,843.42x = 2,113,163,591.21
5. Step 5: Solve for x
   x = 2,113,163,591.21/49,843.42
6. Step 6: Final answer
   x = 42,396.04