Finding the Fourth Proportional to 148,087.59, 204,365.57 and 81,019.59

Step by Step Solution

1. Step 1: Write the proportion equation
   148,087.59 : 204,365.57 = 81,019.59 : x
2. Step 2: Convert to fraction form
   148,087.59/204,365.57 = 81,019.59/x
3. Step 3: Cross multiply
   148,087.59x = 204,365.57 × 81,019.59
4. Step 4: Simplify right side
   148,087.59x = 16,557,614,286.42
5. Step 5: Solve for x
   x = 16,557,614,286.42/148,087.59
6. Step 6: Final answer
   x = 111,809.60