Finding the Fourth Proportional to 49,208.61, 67,917.16 and 30,820.25

Step by Step Solution

1. Step 1: Write the proportion equation
   49,208.61 : 67,917.16 = 30,820.25 : x
2. Step 2: Convert to fraction form
   49,208.61/67,917.16 = 30,820.25/x
3. Step 3: Cross multiply
   49,208.61x = 67,917.16 × 30,820.25
4. Step 4: Simplify right side
   49,208.61x = 2,093,223,850.49
5. Step 5: Solve for x
   x = 2,093,223,850.49/49,208.61
6. Step 6: Final answer
   x = 42,537.76