Finding the Fourth Proportional to 11,648.76, 17,469.36 and 3,855.75

Step by Step Solution

1. Step 1: Write the proportion equation
   11,648.76 : 17,469.36 = 3,855.75 : x
2. Step 2: Convert to fraction form
   11,648.76/17,469.36 = 3,855.75/x
3. Step 3: Cross multiply
   11,648.76x = 17,469.36 × 3,855.75
4. Step 4: Simplify right side
   11,648.76x = 67,357,484.82
5. Step 5: Solve for x
   x = 67,357,484.82/11,648.76
6. Step 6: Final answer
   x = 5,782.37