Finding the Fourth Proportional to 185,640.02, 256,182.72 and 100,757.42

Step by Step Solution

1. Step 1: Write the proportion equation
   185,640.02 : 256,182.72 = 100,757.42 : x
2. Step 2: Convert to fraction form
   185,640.02/256,182.72 = 100,757.42/x
3. Step 3: Cross multiply
   185,640.02x = 256,182.72 × 100,757.42
4. Step 4: Simplify right side
   185,640.02x = 25,812,309,915.78
5. Step 5: Solve for x
   x = 25,812,309,915.78/185,640.02
6. Step 6: Final answer
   x = 139,044.96