Finding the Fourth Proportional to 64,865.56, 89,514.42 and 35,057.56

Step by Step Solution

1. Step 1: Write the proportion equation
   64,865.56 : 89,514.42 = 35,057.56 : x
2. Step 2: Convert to fraction form
   64,865.56/89,514.42 = 35,057.56/x
3. Step 3: Cross multiply
   64,865.56x = 89,514.42 × 35,057.56
4. Step 4: Simplify right side
   64,865.56x = 3,138,157,150.02
5. Step 5: Solve for x
   x = 3,138,157,150.02/64,865.56
6. Step 6: Final answer
   x = 48,379.40