Finding the Fourth Proportional to 111,601.82, 153,986.55 and 66,295.08

Step by Step Solution

1. Step 1: Write the proportion equation
   111,601.82 : 153,986.55 = 66,295.08 : x
2. Step 2: Convert to fraction form
   111,601.82/153,986.55 = 66,295.08/x
3. Step 3: Cross multiply
   111,601.82x = 153,986.55 × 66,295.08
4. Step 4: Simplify right side
   111,601.82x = 10,208,550,651.17
5. Step 5: Solve for x
   x = 10,208,550,651.17/111,601.82
6. Step 6: Final answer
   x = 91,472.98