Finding the Fourth Proportional to 39,847.55, 59,808.27 and 20,139.94

Step by Step Solution

1. Step 1: Write the proportion equation
   39,847.55 : 59,808.27 = 20,139.94 : x
2. Step 2: Convert to fraction form
   39,847.55/59,808.27 = 20,139.94/x
3. Step 3: Cross multiply
   39,847.55x = 59,808.27 × 20,139.94
4. Step 4: Simplify right side
   39,847.55x = 1,204,535,119.59
5. Step 5: Solve for x
   x = 1,204,535,119.59/39,847.55
6. Step 6: Final answer
   x = 30,228.59