Finding the Fourth Proportional to 185,550.84, 256,057.86 and 100,667.28

Step by Step Solution

1. Step 1: Write the proportion equation
   185,550.84 : 256,057.86 = 100,667.28 : x
2. Step 2: Convert to fraction form
   185,550.84/256,057.86 = 100,667.28/x
3. Step 3: Cross multiply
   185,550.84x = 256,057.86 × 100,667.28
4. Step 4: Simplify right side
   185,550.84x = 25,776,648,288.82
5. Step 5: Solve for x
   x = 25,776,648,288.82/185,550.84
6. Step 6: Final answer
   x = 138,919.60