Finding the Fourth Proportional to 143,085.93, 197,418.57 and 89,425.46

Step by Step Solution

1. Step 1: Write the proportion equation
   143,085.93 : 197,418.57 = 89,425.46 : x
2. Step 2: Convert to fraction form
   143,085.93/197,418.57 = 89,425.46/x
3. Step 3: Cross multiply
   143,085.93x = 197,418.57 × 89,425.46
4. Step 4: Simplify right side
   143,085.93x = 17,654,245,447.70
5. Step 5: Solve for x
   x = 17,654,245,447.70/143,085.93
6. Step 6: Final answer
   x = 123,382.12