Finding the Fourth Proportional to 115,844.52, 159,846.91 and 64,859.39

Step by Step Solution

1. Step 1: Write the proportion equation
   115,844.52 : 159,846.91 = 64,859.39 : x
2. Step 2: Convert to fraction form
   115,844.52/159,846.91 = 64,859.39/x
3. Step 3: Cross multiply
   115,844.52x = 159,846.91 × 64,859.39
4. Step 4: Simplify right side
   115,844.52x = 10,367,573,075.98
5. Step 5: Solve for x
   x = 10,367,573,075.98/115,844.52
6. Step 6: Final answer
   x = 89,495.58