Finding the Fourth Proportional to 143,300.97, 197,693.91 and 89,492.49

Step by Step Solution

1. Step 1: Write the proportion equation
   143,300.97 : 197,693.91 = 89,492.49 : x
2. Step 2: Convert to fraction form
   143,300.97/197,693.91 = 89,492.49/x
3. Step 3: Cross multiply
   143,300.97x = 197,693.91 × 89,492.49
4. Step 4: Simplify right side
   143,300.97x = 17,692,120,263.74
5. Step 5: Solve for x
   x = 17,692,120,263.74/143,300.97
6. Step 6: Final answer
   x = 123,461.27