Finding the Fourth Proportional to 143,889.69, 198,570.24 and 79,366.34

Step by Step Solution

1. Step 1: Write the proportion equation
   143,889.69 : 198,570.24 = 79,366.34 : x
2. Step 2: Convert to fraction form
   143,889.69/198,570.24 = 79,366.34/x
3. Step 3: Cross multiply
   143,889.69x = 198,570.24 × 79,366.34
4. Step 4: Simplify right side
   143,889.69x = 15,759,793,181.72
5. Step 5: Solve for x
   x = 15,759,793,181.72/143,889.69
6. Step 6: Final answer
   x = 109,526.91