Finding the Fourth Proportional to 90,998.55, 136,498.15 and 27,818.42

Step by Step Solution

1. Step 1: Write the proportion equation
   90,998.55 : 136,498.15 = 27,818.42 : x
2. Step 2: Convert to fraction form
   90,998.55/136,498.15 = 27,818.42/x
3. Step 3: Cross multiply
   90,998.55x = 136,498.15 × 27,818.42
4. Step 4: Simplify right side
   90,998.55x = 3,797,162,865.92
5. Step 5: Solve for x
   x = 3,797,162,865.92/90,998.55
6. Step 6: Final answer
   x = 41,727.73