Finding the Fourth Proportional to 49,876.56, 68,839.20 and 30,762.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,876.56 : 68,839.20 = 30,762.72 : x
2. Step 2: Convert to fraction form
   49,876.56/68,839.20 = 30,762.72/x
3. Step 3: Cross multiply
   49,876.56x = 68,839.20 × 30,762.72
4. Step 4: Simplify right side
   49,876.56x = 2,117,681,034.62
5. Step 5: Solve for x
   x = 2,117,681,034.62/49,876.56
6. Step 6: Final answer
   x = 42,458.44