Finding the Fourth Proportional to 64,961.76, 89,647.22 and 35,153.76

Step by Step Solution

1. Step 1: Write the proportion equation
   64,961.76 : 89,647.22 = 35,153.76 : x
2. Step 2: Convert to fraction form
   64,961.76/89,647.22 = 35,153.76/x
3. Step 3: Cross multiply
   64,961.76x = 89,647.22 × 35,153.76
4. Step 4: Simplify right side
   64,961.76x = 3,151,436,856.55
5. Step 5: Solve for x
   x = 3,151,436,856.55/64,961.76
6. Step 6: Final answer
   x = 48,512.18