Finding the Fourth Proportional to 35,978.34, 49,646.49 and 20,061.30

Step by Step Solution

1. Step 1: Write the proportion equation
   35,978.34 : 49,646.49 = 20,061.30 : x
2. Step 2: Convert to fraction form
   35,978.34/49,646.49 = 20,061.30/x
3. Step 3: Cross multiply
   35,978.34x = 49,646.49 × 20,061.30
4. Step 4: Simplify right side
   35,978.34x = 995,973,129.84
5. Step 5: Solve for x
   x = 995,973,129.84/35,978.34
6. Step 6: Final answer
   x = 27,682.58