Finding the Fourth Proportional to 143,386.08, 197,868.72 and 79,722.72

Step by Step Solution

1. Step 1: Write the proportion equation
   143,386.08 : 197,868.72 = 79,722.72 : x
2. Step 2: Convert to fraction form
   143,386.08/197,868.72 = 79,722.72/x
3. Step 3: Cross multiply
   143,386.08x = 197,868.72 × 79,722.72
4. Step 4: Simplify right side
   143,386.08x = 15,774,632,561.32
5. Step 5: Solve for x
   x = 15,774,632,561.32/143,386.08
6. Step 6: Final answer
   x = 110,015.09