Finding the Fourth Proportional to 66,493.82, 91,714.50 and 39,615.59

Step by Step Solution

1. Step 1: Write the proportion equation
   66,493.82 : 91,714.50 = 39,615.59 : x
2. Step 2: Convert to fraction form
   66,493.82/91,714.50 = 39,615.59/x
3. Step 3: Cross multiply
   66,493.82x = 91,714.50 × 39,615.59
4. Step 4: Simplify right side
   66,493.82x = 3,633,323,570.48
5. Step 5: Solve for x
   x = 3,633,323,570.48/66,493.82
6. Step 6: Final answer
   x = 54,641.53