Finding the Fourth Proportional to 143,107.32, 197,488.80 and 89,423.52

Step by Step Solution

1. Step 1: Write the proportion equation
   143,107.32 : 197,488.80 = 89,423.52 : x
2. Step 2: Convert to fraction form
   143,107.32/197,488.80 = 89,423.52/x
3. Step 3: Cross multiply
   143,107.32x = 197,488.80 × 89,423.52
4. Step 4: Simplify right side
   143,107.32x = 17,660,143,656.58
5. Step 5: Solve for x
   x = 17,660,143,656.58/143,107.32
6. Step 6: Final answer
   x = 123,404.89