Finding the Fourth Proportional to 108,561.32, 162,601.38 and 83,416.28

Step by Step Solution

1. Step 1: Write the proportion equation
   108,561.32 : 162,601.38 = 83,416.28 : x
2. Step 2: Convert to fraction form
   108,561.32/162,601.38 = 83,416.28/x
3. Step 3: Cross multiply
   108,561.32x = 162,601.38 × 83,416.28
4. Step 4: Simplify right side
   108,561.32x = 13,563,602,961.78
5. Step 5: Solve for x
   x = 13,563,602,961.78/108,561.32
6. Step 6: Final answer
   x = 124,939.55