Finding the Fourth Proportional to 67,766.93, 93,515.82 and 39,087.80

Step by Step Solution

1. Step 1: Write the proportion equation
   67,766.93 : 93,515.82 = 39,087.80 : x
2. Step 2: Convert to fraction form
   67,766.93/93,515.82 = 39,087.80/x
3. Step 3: Cross multiply
   67,766.93x = 93,515.82 × 39,087.80
4. Step 4: Simplify right side
   67,766.93x = 3,655,327,405.52
5. Step 5: Solve for x
   x = 3,655,327,405.52/67,766.93
6. Step 6: Final answer
   x = 53,939.69