Finding the Fourth Proportional to 115,840.82, 159,823.17 and 64,846.05

Step by Step Solution

1. Step 1: Write the proportion equation
   115,840.82 : 159,823.17 = 64,846.05 : x
2. Step 2: Convert to fraction form
   115,840.82/159,823.17 = 64,846.05/x
3. Step 3: Cross multiply
   115,840.82x = 159,823.17 × 64,846.05
4. Step 4: Simplify right side
   115,840.82x = 10,363,901,272.98
5. Step 5: Solve for x
   x = 10,363,901,272.98/115,840.82
6. Step 6: Final answer
   x = 89,466.75