Finding the Fourth Proportional to 115,843.82, 159,827.31 and 64,849.05

Step by Step Solution

1. Step 1: Write the proportion equation
   115,843.82 : 159,827.31 = 64,849.05 : x
2. Step 2: Convert to fraction form
   115,843.82/159,827.31 = 64,849.05/x
3. Step 3: Cross multiply
   115,843.82x = 159,827.31 × 64,849.05
4. Step 4: Simplify right side
   115,843.82x = 10,364,649,217.56
5. Step 5: Solve for x
   x = 10,364,649,217.56/115,843.82
6. Step 6: Final answer
   x = 89,470.89