Finding the Fourth Proportional to 143,040.69, 197,400.24 and 79,382.59

Step by Step Solution

1. Step 1: Write the proportion equation
   143,040.69 : 197,400.24 = 79,382.59 : x
2. Step 2: Convert to fraction form
   143,040.69/197,400.24 = 79,382.59/x
3. Step 3: Cross multiply
   143,040.69x = 197,400.24 × 79,382.59
4. Step 4: Simplify right side
   143,040.69x = 15,670,141,824.32
5. Step 5: Solve for x
   x = 15,670,141,824.32/143,040.69
6. Step 6: Final answer
   x = 109,550.24