Finding the Fourth Proportional to 185,667.72, 256,149.68 and 105,076.76

Step by Step Solution

1. Step 1: Write the proportion equation
   185,667.72 : 256,149.68 = 105,076.76 : x
2. Step 2: Convert to fraction form
   185,667.72/256,149.68 = 105,076.76/x
3. Step 3: Cross multiply
   185,667.72x = 256,149.68 × 105,076.76
4. Step 4: Simplify right side
   185,667.72x = 26,915,378,449.44
5. Step 5: Solve for x
   x = 26,915,378,449.44/185,667.72
6. Step 6: Final answer
   x = 144,965.31