Finding the Fourth Proportional to 108,667.50, 163,016.46 and 102,691.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,667.50 : 163,016.46 = 102,691.50 : x
2. Step 2: Convert to fraction form
   108,667.50/163,016.46 = 102,691.50/x
3. Step 3: Cross multiply
   108,667.50x = 163,016.46 × 102,691.50
4. Step 4: Simplify right side
   108,667.50x = 16,740,404,802.09
5. Step 5: Solve for x
   x = 16,740,404,802.09/108,667.50
6. Step 6: Final answer
   x = 154,051.62