Finding the Fourth Proportional to 115,049.34, 158,766.21 and 64,748.34

Step by Step Solution

1. Step 1: Write the proportion equation
   115,049.34 : 158,766.21 = 64,748.34 : x
2. Step 2: Convert to fraction form
   115,049.34/158,766.21 = 64,748.34/x
3. Step 3: Cross multiply
   115,049.34x = 158,766.21 × 64,748.34
4. Step 4: Simplify right side
   115,049.34x = 10,279,848,545.59
5. Step 5: Solve for x
   x = 10,279,848,545.59/115,049.34
6. Step 6: Final answer
   x = 89,351.65