Finding the Fourth Proportional to 143,103.89, 197,475.65 and 79,437.59

Step by Step Solution

1. Step 1: Write the proportion equation
   143,103.89 : 197,475.65 = 79,437.59 : x
2. Step 2: Convert to fraction form
   143,103.89/197,475.65 = 79,437.59/x
3. Step 3: Cross multiply
   143,103.89x = 197,475.65 × 79,437.59
4. Step 4: Simplify right side
   143,103.89x = 15,686,988,594.72
5. Step 5: Solve for x
   x = 15,686,988,594.72/143,103.89
6. Step 6: Final answer
   x = 109,619.58