Finding the Fourth Proportional to 49,941, 68,920.61 and 28,720.28

Step by Step Solution

1. Step 1: Write the proportion equation
   49,941 : 68,920.61 = 28,720.28 : x
2. Step 2: Convert to fraction form
   49,941/68,920.61 = 28,720.28/x
3. Step 3: Cross multiply
   49,941x = 68,920.61 × 28,720.28
4. Step 4: Simplify right side
   49,941x = 1,979,418,728.77
5. Step 5: Solve for x
   x = 1,979,418,728.77/49,941
6. Step 6: Final answer
   x = 39,635.14