Finding the Fourth Proportional to 64,825.50, 89,459.20 and 35,017.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,825.50 : 89,459.20 = 35,017.50 : x
2. Step 2: Convert to fraction form
   64,825.50/89,459.20 = 35,017.50/x
3. Step 3: Cross multiply
   64,825.50x = 89,459.20 × 35,017.50
4. Step 4: Simplify right side
   64,825.50x = 3,132,637,536
5. Step 5: Solve for x
   x = 3,132,637,536/64,825.50
6. Step 6: Final answer
   x = 48,324.16