Finding the Fourth Proportional to 64,956.94, 89,640.88 and 35,148.94

Step by Step Solution

1. Step 1: Write the proportion equation
   64,956.94 : 89,640.88 = 35,148.94 : x
2. Step 2: Convert to fraction form
   64,956.94/89,640.88 = 35,148.94/x
3. Step 3: Cross multiply
   64,956.94x = 89,640.88 × 35,148.94
4. Step 4: Simplify right side
   64,956.94x = 3,150,781,600.69
5. Step 5: Solve for x
   x = 3,150,781,600.69/64,956.94
6. Step 6: Final answer
   x = 48,505.70