Finding the Fourth Proportional to 112,099.97, 168,180.71 and 55,872.20

Step by Step Solution

1. Step 1: Write the proportion equation
   112,099.97 : 168,180.71 = 55,872.20 : x
2. Step 2: Convert to fraction form
   112,099.97/168,180.71 = 55,872.20/x
3. Step 3: Cross multiply
   112,099.97x = 168,180.71 × 55,872.20
4. Step 4: Simplify right side
   112,099.97x = 9,396,626,406.35
5. Step 5: Solve for x
   x = 9,396,626,406.35/112,099.97
6. Step 6: Final answer
   x = 83,823.63