Finding the Fourth Proportional to 108,148.27, 161,906.73 and 72,164.83

Step by Step Solution

1. Step 1: Write the proportion equation
   108,148.27 : 161,906.73 = 72,164.83 : x
2. Step 2: Convert to fraction form
   108,148.27/161,906.73 = 72,164.83/x
3. Step 3: Cross multiply
   108,148.27x = 161,906.73 × 72,164.83
4. Step 4: Simplify right side
   108,148.27x = 11,683,971,646.31
5. Step 5: Solve for x
   x = 11,683,971,646.31/108,148.27
6. Step 6: Final answer
   x = 108,036.60