Finding the Fourth Proportional to 140,279.94, 193,479.17 and 89,300.97

Step by Step Solution

1. Step 1: Write the proportion equation
   140,279.94 : 193,479.17 = 89,300.97 : x
2. Step 2: Convert to fraction form
   140,279.94/193,479.17 = 89,300.97/x
3. Step 3: Cross multiply
   140,279.94x = 193,479.17 × 89,300.97
4. Step 4: Simplify right side
   140,279.94x = 17,277,877,109.29
5. Step 5: Solve for x
   x = 17,277,877,109.29/140,279.94
6. Step 6: Final answer
   x = 123,167.13