Finding the Fourth Proportional to 103,981.67, 143,459.81 and 84,828.34

Step by Step Solution

1. Step 1: Write the proportion equation
   103,981.67 : 143,459.81 = 84,828.34 : x
2. Step 2: Convert to fraction form
   103,981.67/143,459.81 = 84,828.34/x
3. Step 3: Cross multiply
   103,981.67x = 143,459.81 × 84,828.34
4. Step 4: Simplify right side
   103,981.67x = 12,169,457,208.82
5. Step 5: Solve for x
   x = 12,169,457,208.82/103,981.67
6. Step 6: Final answer
   x = 117,034.63