Finding the Fourth Proportional to 49,377.78, 68,141.88 and 28,158.30

Step by Step Solution

1. Step 1: Write the proportion equation
   49,377.78 : 68,141.88 = 28,158.30 : x
2. Step 2: Convert to fraction form
   49,377.78/68,141.88 = 28,158.30/x
3. Step 3: Cross multiply
   49,377.78x = 68,141.88 × 28,158.30
4. Step 4: Simplify right side
   49,377.78x = 1,918,759,499.60
5. Step 5: Solve for x
   x = 1,918,759,499.60/49,377.78
6. Step 6: Final answer
   x = 38,858.76