Finding the Fourth Proportional to 64,648.35, 89,213.02 and 35,966.56

Step by Step Solution

1. Step 1: Write the proportion equation
   64,648.35 : 89,213.02 = 35,966.56 : x
2. Step 2: Convert to fraction form
   64,648.35/89,213.02 = 35,966.56/x
3. Step 3: Cross multiply
   64,648.35x = 89,213.02 × 35,966.56
4. Step 4: Simplify right side
   64,648.35x = 3,208,685,436.61
5. Step 5: Solve for x
   x = 3,208,685,436.61/64,648.35
6. Step 6: Final answer
   x = 49,632.91