Finding the Fourth Proportional to 162,362.06, 243,456.06 and 81,296.35

Step by Step Solution

1. Step 1: Write the proportion equation
   162,362.06 : 243,456.06 = 81,296.35 : x
2. Step 2: Convert to fraction form
   162,362.06/243,456.06 = 81,296.35/x
3. Step 3: Cross multiply
   162,362.06x = 243,456.06 × 81,296.35
4. Step 4: Simplify right side
   162,362.06x = 19,792,089,063.38
5. Step 5: Solve for x
   x = 19,792,089,063.38/162,362.06
6. Step 6: Final answer
   x = 121,900.95