Finding the Fourth Proportional to 35,978.84, 49,647.18 and 20,061.80

Step by Step Solution

1. Step 1: Write the proportion equation
   35,978.84 : 49,647.18 = 20,061.80 : x
2. Step 2: Convert to fraction form
   35,978.84/49,647.18 = 20,061.80/x
3. Step 3: Cross multiply
   35,978.84x = 49,647.18 × 20,061.80
4. Step 4: Simplify right side
   35,978.84x = 996,011,795.72
5. Step 5: Solve for x
   x = 996,011,795.72/35,978.84
6. Step 6: Final answer
   x = 27,683.27