Finding the Fourth Proportional to 115,046.30, 158,763.57 and 64,745.30

Step by Step Solution

1. Step 1: Write the proportion equation
   115,046.30 : 158,763.57 = 64,745.30 : x
2. Step 2: Convert to fraction form
   115,046.30/158,763.57 = 64,745.30/x
3. Step 3: Cross multiply
   115,046.30x = 158,763.57 × 64,745.30
4. Step 4: Simplify right side
   115,046.30x = 10,279,194,968.72
5. Step 5: Solve for x
   x = 10,279,194,968.72/115,046.30
6. Step 6: Final answer
   x = 89,348.33