Finding the Fourth Proportional to 61,086.62, 84,299.83 and 39,853.34

Step by Step Solution

1. Step 1: Write the proportion equation
   61,086.62 : 84,299.83 = 39,853.34 : x
2. Step 2: Convert to fraction form
   61,086.62/84,299.83 = 39,853.34/x
3. Step 3: Cross multiply
   61,086.62x = 84,299.83 × 39,853.34
4. Step 4: Simplify right side
   61,086.62x = 3,359,629,786.93
5. Step 5: Solve for x
   x = 3,359,629,786.93/61,086.62
6. Step 6: Final answer
   x = 54,997.80