Finding the Fourth Proportional to 49,621.82, 68,488.96 and 30,518.04

Step by Step Solution

1. Step 1: Write the proportion equation
   49,621.82 : 68,488.96 = 30,518.04 : x
2. Step 2: Convert to fraction form
   49,621.82/68,488.96 = 30,518.04/x
3. Step 3: Cross multiply
   49,621.82x = 68,488.96 × 30,518.04
4. Step 4: Simplify right side
   49,621.82x = 2,090,148,820.84
5. Step 5: Solve for x
   x = 2,090,148,820.84/49,621.82
6. Step 6: Final answer
   x = 42,121.57