Finding the Fourth Proportional to 143,017.86, 197,364.02 and 79,355.51

Step by Step Solution

1. Step 1: Write the proportion equation
   143,017.86 : 197,364.02 = 79,355.51 : x
2. Step 2: Convert to fraction form
   143,017.86/197,364.02 = 79,355.51/x
3. Step 3: Cross multiply
   143,017.86x = 197,364.02 × 79,355.51
4. Step 4: Simplify right side
   143,017.86x = 15,661,921,079.15
5. Step 5: Solve for x
   x = 15,661,921,079.15/143,017.86
6. Step 6: Final answer
   x = 109,510.25