Finding the Fourth Proportional to 111,841.59, 154,290.54 and 66,493.84

Step by Step Solution

1. Step 1: Write the proportion equation
   111,841.59 : 154,290.54 = 66,493.84 : x
2. Step 2: Convert to fraction form
   111,841.59/154,290.54 = 66,493.84/x
3. Step 3: Cross multiply
   111,841.59x = 154,290.54 × 66,493.84
4. Step 4: Simplify right side
   111,841.59x = 10,259,370,480.27
5. Step 5: Solve for x
   x = 10,259,370,480.27/111,841.59
6. Step 6: Final answer
   x = 91,731.26