Finding the Fourth Proportional to 143,461.82, 197,969.46 and 78,929.84

Step by Step Solution

1. Step 1: Write the proportion equation
   143,461.82 : 197,969.46 = 78,929.84 : x
2. Step 2: Convert to fraction form
   143,461.82/197,969.46 = 78,929.84/x
3. Step 3: Cross multiply
   143,461.82x = 197,969.46 × 78,929.84
4. Step 4: Simplify right side
   143,461.82x = 15,625,697,802.69
5. Step 5: Solve for x
   x = 15,625,697,802.69/143,461.82
6. Step 6: Final answer
   x = 108,918.86