Finding the Fourth Proportional to 64,917.56, 89,586.50 and 35,109.56

Step by Step Solution

1. Step 1: Write the proportion equation
   64,917.56 : 89,586.50 = 35,109.56 : x
2. Step 2: Convert to fraction form
   64,917.56/89,586.50 = 35,109.56/x
3. Step 3: Cross multiply
   64,917.56x = 89,586.50 × 35,109.56
4. Step 4: Simplify right side
   64,917.56x = 3,145,342,596.94
5. Step 5: Solve for x
   x = 3,145,342,596.94/64,917.56
6. Step 6: Final answer
   x = 48,451.34