Finding the Fourth Proportional to 108,561.69, 161,879.83 and 101,322.72

Step by Step Solution

1. Step 1: Write the proportion equation
   108,561.69 : 161,879.83 = 101,322.72 : x
2. Step 2: Convert to fraction form
   108,561.69/161,879.83 = 101,322.72/x
3. Step 3: Cross multiply
   108,561.69x = 161,879.83 × 101,322.72
4. Step 4: Simplify right side
   108,561.69x = 16,402,104,435.43
5. Step 5: Solve for x
   x = 16,402,104,435.43/108,561.69
6. Step 6: Final answer
   x = 151,085.57