Finding the Fourth Proportional to 103,665.98, 143,103.18 and 69,694.17

Step by Step Solution

1. Step 1: Write the proportion equation
   103,665.98 : 143,103.18 = 69,694.17 : x
2. Step 2: Convert to fraction form
   103,665.98/143,103.18 = 69,694.17/x
3. Step 3: Cross multiply
   103,665.98x = 143,103.18 × 69,694.17
4. Step 4: Simplify right side
   103,665.98x = 9,973,457,354.46
5. Step 5: Solve for x
   x = 9,973,457,354.46/103,665.98
6. Step 6: Final answer
   x = 96,207.63