Finding the Fourth Proportional to 67,890.83, 93,682.89 and 39,208.32

Step by Step Solution

1. Step 1: Write the proportion equation
   67,890.83 : 93,682.89 = 39,208.32 : x
2. Step 2: Convert to fraction form
   67,890.83/93,682.89 = 39,208.32/x
3. Step 3: Cross multiply
   67,890.83x = 93,682.89 × 39,208.32
4. Step 4: Simplify right side
   67,890.83x = 3,673,148,729.64
5. Step 5: Solve for x
   x = 3,673,148,729.64/67,890.83
6. Step 6: Final answer
   x = 54,103.76