Finding the Fourth Proportional to 111,933, 154,463.96 and 66,600.60

Step by Step Solution

1. Step 1: Write the proportion equation
   111,933 : 154,463.96 = 66,600.60 : x
2. Step 2: Convert to fraction form
   111,933/154,463.96 = 66,600.60/x
3. Step 3: Cross multiply
   111,933x = 154,463.96 × 66,600.60
4. Step 4: Simplify right side
   111,933x = 10,287,392,081.37
5. Step 5: Solve for x
   x = 10,287,392,081.37/111,933
6. Step 6: Final answer
   x = 91,906.69