Finding the Fourth Proportional to 64,864.56, 89,513.04 and 35,056.56

Step by Step Solution

1. Step 1: Write the proportion equation
   64,864.56 : 89,513.04 = 35,056.56 : x
2. Step 2: Convert to fraction form
   64,864.56/89,513.04 = 35,056.56/x
3. Step 3: Cross multiply
   64,864.56x = 89,513.04 × 35,056.56
4. Step 4: Simplify right side
   64,864.56x = 3,138,019,257.54
5. Step 5: Solve for x
   x = 3,138,019,257.54/64,864.56
6. Step 6: Final answer
   x = 48,378.02