Finding the Fourth Proportional to 185,665.72, 256,146.92 and 105,074.76

Step by Step Solution

1. Step 1: Write the proportion equation
   185,665.72 : 256,146.92 = 105,074.76 : x
2. Step 2: Convert to fraction form
   185,665.72/256,146.92 = 105,074.76/x
3. Step 3: Cross multiply
   185,665.72x = 256,146.92 × 105,074.76
4. Step 4: Simplify right side
   185,665.72x = 26,914,576,143.74
5. Step 5: Solve for x
   x = 26,914,576,143.74/185,665.72
6. Step 6: Final answer
   x = 144,962.55