Finding the Fourth Proportional to 11,238.91, 16,856.87 and 3,341.28

Step by Step Solution

1. Step 1: Write the proportion equation
   11,238.91 : 16,856.87 = 3,341.28 : x
2. Step 2: Convert to fraction form
   11,238.91/16,856.87 = 3,341.28/x
3. Step 3: Cross multiply
   11,238.91x = 16,856.87 × 3,341.28
4. Step 4: Simplify right side
   11,238.91x = 56,323,522.59
5. Step 5: Solve for x
   x = 56,323,522.59/11,238.91
6. Step 6: Final answer
   x = 5,011.48