Finding the Fourth Proportional to 49,548.72, 68,389.48 and 30,433.12

Step by Step Solution

1. Step 1: Write the proportion equation
   49,548.72 : 68,389.48 = 30,433.12 : x
2. Step 2: Convert to fraction form
   49,548.72/68,389.48 = 30,433.12/x
3. Step 3: Cross multiply
   49,548.72x = 68,389.48 × 30,433.12
4. Step 4: Simplify right side
   49,548.72x = 2,081,305,251.58
5. Step 5: Solve for x
   x = 2,081,305,251.58/49,548.72
6. Step 6: Final answer
   x = 42,005.23