Finding the Fourth Proportional to 49,549.72, 68,390.86 and 30,434.12

Step by Step Solution

1. Step 1: Write the proportion equation
   49,549.72 : 68,390.86 = 30,434.12 : x
2. Step 2: Convert to fraction form
   49,549.72/68,390.86 = 30,434.12/x
3. Step 3: Cross multiply
   49,549.72x = 68,390.86 × 30,434.12
4. Step 4: Simplify right side
   49,549.72x = 2,081,415,640.14
5. Step 5: Solve for x
   x = 2,081,415,640.14/49,549.72
6. Step 6: Final answer
   x = 42,006.61