Finding the Fourth Proportional to 115,940.03, 159,996.89 and 64,260.42

Step by Step Solution

1. Step 1: Write the proportion equation
   115,940.03 : 159,996.89 = 64,260.42 : x
2. Step 2: Convert to fraction form
   115,940.03/159,996.89 = 64,260.42/x
3. Step 3: Cross multiply
   115,940.03x = 159,996.89 × 64,260.42
4. Step 4: Simplify right side
   115,940.03x = 10,281,467,449.27
5. Step 5: Solve for x
   x = 10,281,467,449.27/115,940.03
6. Step 6: Final answer
   x = 88,679.19