Finding the Fourth Proportional to 49,051.40, 67,682.85 and 30,899.30

Step by Step Solution

1. Step 1: Write the proportion equation
   49,051.40 : 67,682.85 = 30,899.30 : x
2. Step 2: Convert to fraction form
   49,051.40/67,682.85 = 30,899.30/x
3. Step 3: Cross multiply
   49,051.40x = 67,682.85 × 30,899.30
4. Step 4: Simplify right side
   49,051.40x = 2,091,352,348.59
5. Step 5: Solve for x
   x = 2,091,352,348.59/49,051.40
6. Step 6: Final answer
   x = 42,635.94