Finding the Fourth Proportional to 65,284.52, 89,505.90 and 64,103.54

Step by Step Solution

1. Step 1: Write the proportion equation
   65,284.52 : 89,505.90 = 64,103.54 : x
2. Step 2: Convert to fraction form
   65,284.52/89,505.90 = 64,103.54/x
3. Step 3: Cross multiply
   65,284.52x = 89,505.90 × 64,103.54
4. Step 4: Simplify right side
   65,284.52x = 5,737,644,593.36
5. Step 5: Solve for x
   x = 5,737,644,593.36/65,284.52
6. Step 6: Final answer
   x = 87,886.76