Finding the Fourth Proportional to 49,796.48, 74,688.56 and 20,185.86

Step by Step Solution

1. Step 1: Write the proportion equation
   49,796.48 : 74,688.56 = 20,185.86 : x
2. Step 2: Convert to fraction form
   49,796.48/74,688.56 = 20,185.86/x
3. Step 3: Cross multiply
   49,796.48x = 74,688.56 × 20,185.86
4. Step 4: Simplify right side
   49,796.48x = 1,507,652,714.83
5. Step 5: Solve for x
   x = 1,507,652,714.83/49,796.48
6. Step 6: Final answer
   x = 30,276.29