Finding the Fourth Proportional to 115,942.68, 159,964.57 and 64,948.52

Step by Step Solution

1. Step 1: Write the proportion equation
   115,942.68 : 159,964.57 = 64,948.52 : x
2. Step 2: Convert to fraction form
   115,942.68/159,964.57 = 64,948.52/x
3. Step 3: Cross multiply
   115,942.68x = 159,964.57 × 64,948.52
4. Step 4: Simplify right side
   115,942.68x = 10,389,462,311.48
5. Step 5: Solve for x
   x = 10,389,462,311.48/115,942.68
6. Step 6: Final answer
   x = 89,608.61