Finding the Fourth Proportional to 112,443.80, 168,557.70 and 65,010.20

Step by Step Solution

1. Step 1: Write the proportion equation
   112,443.80 : 168,557.70 = 65,010.20 : x
2. Step 2: Convert to fraction form
   112,443.80/168,557.70 = 65,010.20/x
3. Step 3: Cross multiply
   112,443.80x = 168,557.70 × 65,010.20
4. Step 4: Simplify right side
   112,443.80x = 10,957,969,788.54
5. Step 5: Solve for x
   x = 10,957,969,788.54/112,443.80
6. Step 6: Final answer
   x = 97,452.86