Finding the Fourth Proportional to 64,559.85, 89,092.52 and 35,878.60

Step by Step Solution

1. Step 1: Write the proportion equation
   64,559.85 : 89,092.52 = 35,878.60 : x
2. Step 2: Convert to fraction form
   64,559.85/89,092.52 = 35,878.60/x
3. Step 3: Cross multiply
   64,559.85x = 89,092.52 × 35,878.60
4. Step 4: Simplify right side
   64,559.85x = 3,196,515,104.25
5. Step 5: Solve for x
   x = 3,196,515,104.25/64,559.85
6. Step 6: Final answer
   x = 49,512.43