Finding the Fourth Proportional to 185,631.72, 256,171.96 and 100,748.82

Step by Step Solution

1. Step 1: Write the proportion equation
   185,631.72 : 256,171.96 = 100,748.82 : x
2. Step 2: Convert to fraction form
   185,631.72/256,171.96 = 100,748.82/x
3. Step 3: Cross multiply
   185,631.72x = 256,171.96 × 100,748.82
4. Step 4: Simplify right side
   185,631.72x = 25,809,022,687.09
5. Step 5: Solve for x
   x = 25,809,022,687.09/185,631.72
6. Step 6: Final answer
   x = 139,033.47