Finding the Fourth Proportional to 154,498.68, 213,039.86 and 134,176.05

Step by Step Solution

1. Step 1: Write the proportion equation
   154,498.68 : 213,039.86 = 134,176.05 : x
2. Step 2: Convert to fraction form
   154,498.68/213,039.86 = 134,176.05/x
3. Step 3: Cross multiply
   154,498.68x = 213,039.86 × 134,176.05
4. Step 4: Simplify right side
   154,498.68x = 28,584,846,236.47
5. Step 5: Solve for x
   x = 28,584,846,236.47/154,498.68
6. Step 6: Final answer
   x = 185,016.77