Finding the Fourth Proportional to 254,185.24, 381,011.82 and 85,647.34

Step by Step Solution

1. Step 1: Write the proportion equation
   254,185.24 : 381,011.82 = 85,647.34 : x
2. Step 2: Convert to fraction form
   254,185.24/381,011.82 = 85,647.34/x
3. Step 3: Cross multiply
   254,185.24x = 381,011.82 × 85,647.34
4. Step 4: Simplify right side
   254,185.24x = 32,632,648,891.56
5. Step 5: Solve for x
   x = 32,632,648,891.56/254,185.24
6. Step 6: Final answer
   x = 128,381.37