Finding the Fourth Proportional to 115,665.32, 159,619.38 and 67,919.24

Step by Step Solution

1. Step 1: Write the proportion equation
   115,665.32 : 159,619.38 = 67,919.24 : x
2. Step 2: Convert to fraction form
   115,665.32/159,619.38 = 67,919.24/x
3. Step 3: Cross multiply
   115,665.32x = 159,619.38 × 67,919.24
4. Step 4: Simplify right side
   115,665.32x = 10,841,226,978.87
5. Step 5: Solve for x
   x = 10,841,226,978.87/115,665.32
6. Step 6: Final answer
   x = 93,729.28