Finding the Fourth Proportional to 11,753.56, 17,629.69 and 3,855.07

Step by Step Solution

1. Step 1: Write the proportion equation
   11,753.56 : 17,629.69 = 3,855.07 : x
2. Step 2: Convert to fraction form
   11,753.56/17,629.69 = 3,855.07/x
3. Step 3: Cross multiply
   11,753.56x = 17,629.69 × 3,855.07
4. Step 4: Simplify right side
   11,753.56x = 67,963,689.03
5. Step 5: Solve for x
   x = 67,963,689.03/11,753.56
6. Step 6: Final answer
   x = 5,782.39