Finding the Fourth Proportional to 49,663.60, 68,524.32 and 30,791.68

Step by Step Solution

1. Step 1: Write the proportion equation
   49,663.60 : 68,524.32 = 30,791.68 : x
2. Step 2: Convert to fraction form
   49,663.60/68,524.32 = 30,791.68/x
3. Step 3: Cross multiply
   49,663.60x = 68,524.32 × 30,791.68
4. Step 4: Simplify right side
   49,663.60x = 2,109,978,933.66
5. Step 5: Solve for x
   x = 2,109,978,933.66/49,663.60
6. Step 6: Final answer
   x = 42,485.42