Finding the Fourth Proportional to 61,290.50, 84,524.73 and 39,757.82

Step by Step Solution

1. Step 1: Write the proportion equation
   61,290.50 : 84,524.73 = 39,757.82 : x
2. Step 2: Convert to fraction form
   61,290.50/84,524.73 = 39,757.82/x
3. Step 3: Cross multiply
   61,290.50x = 84,524.73 × 39,757.82
4. Step 4: Simplify right side
   61,290.50x = 3,360,519,000.89
5. Step 5: Solve for x
   x = 3,360,519,000.89/61,290.50
6. Step 6: Final answer
   x = 54,829.36