Finding the Fourth Proportional to 115,294.38, 159,106.24 and 64,993.38

Step by Step Solution

1. Step 1: Write the proportion equation
   115,294.38 : 159,106.24 = 64,993.38 : x
2. Step 2: Convert to fraction form
   115,294.38/159,106.24 = 64,993.38/x
3. Step 3: Cross multiply
   115,294.38x = 159,106.24 × 64,993.38
4. Step 4: Simplify right side
   115,294.38x = 10,340,852,316.69
5. Step 5: Solve for x
   x = 10,340,852,316.69/115,294.38
6. Step 6: Final answer
   x = 89,690.86