Finding the Fourth Proportional to 49,568.86, 74,356.72 and 19,986.96

Step by Step Solution

1. Step 1: Write the proportion equation
   49,568.86 : 74,356.72 = 19,986.96 : x
2. Step 2: Convert to fraction form
   49,568.86/74,356.72 = 19,986.96/x
3. Step 3: Cross multiply
   49,568.86x = 74,356.72 × 19,986.96
4. Step 4: Simplify right side
   49,568.86x = 1,486,164,788.37
5. Step 5: Solve for x
   x = 1,486,164,788.37/49,568.86
6. Step 6: Final answer
   x = 29,981.82