Finding the Fourth Proportional to 108,561.51, 162,601.67 and 83,416.47

Step by Step Solution

1. Step 1: Write the proportion equation
   108,561.51 : 162,601.67 = 83,416.47 : x
2. Step 2: Convert to fraction form
   108,561.51/162,601.67 = 83,416.47/x
3. Step 3: Cross multiply
   108,561.51x = 162,601.67 × 83,416.47
4. Step 4: Simplify right side
   108,561.51x = 13,563,656,910.42
5. Step 5: Solve for x
   x = 13,563,656,910.42/108,561.51
6. Step 6: Final answer
   x = 124,939.83