Finding the Fourth Proportional to 64,885.50, 89,542.08 and 35,077.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,885.50 : 89,542.08 = 35,077.50 : x
2. Step 2: Convert to fraction form
   64,885.50/89,542.08 = 35,077.50/x
3. Step 3: Cross multiply
   64,885.50x = 89,542.08 × 35,077.50
4. Step 4: Simplify right side
   64,885.50x = 3,140,912,311.20
5. Step 5: Solve for x
   x = 3,140,912,311.20/64,885.50
6. Step 6: Final answer
   x = 48,407.00