Finding the Fourth Proportional to 115,096.34, 158,857.46 and 77,348.72

Step by Step Solution

1. Step 1: Write the proportion equation
   115,096.34 : 158,857.46 = 77,348.72 : x
2. Step 2: Convert to fraction form
   115,096.34/158,857.46 = 77,348.72/x
3. Step 3: Cross multiply
   115,096.34x = 158,857.46 × 77,348.72
4. Step 4: Simplify right side
   115,096.34x = 12,287,421,783.97
5. Step 5: Solve for x
   x = 12,287,421,783.97/115,096.34
6. Step 6: Final answer
   x = 106,757.71