Finding the Fourth Proportional to 144,168.84, 198,900.23 and 90,434.25

Step by Step Solution

1. Step 1: Write the proportion equation
   144,168.84 : 198,900.23 = 90,434.25 : x
2. Step 2: Convert to fraction form
   144,168.84/198,900.23 = 90,434.25/x
3. Step 3: Cross multiply
   144,168.84x = 198,900.23 × 90,434.25
4. Step 4: Simplify right side
   144,168.84x = 17,987,392,672.71
5. Step 5: Solve for x
   x = 17,987,392,672.71/144,168.84
6. Step 6: Final answer
   x = 124,766.16