Finding the Fourth Proportional to 254,043.98, 381,066.62 and 85,682.56

Step by Step Solution

1. Step 1: Write the proportion equation
   254,043.98 : 381,066.62 = 85,682.56 : x
2. Step 2: Convert to fraction form
   254,043.98/381,066.62 = 85,682.56/x
3. Step 3: Cross multiply
   254,043.98x = 381,066.62 × 85,682.56
4. Step 4: Simplify right side
   254,043.98x = 32,650,763,532.15
5. Step 5: Solve for x
   x = 32,650,763,532.15/254,043.98
6. Step 6: Final answer
   x = 128,524.06