Finding the Fourth Proportional to 11,388.66, 17,085.52 and 3,492.28

Step by Step Solution

1. Step 1: Write the proportion equation
   11,388.66 : 17,085.52 = 3,492.28 : x
2. Step 2: Convert to fraction form
   11,388.66/17,085.52 = 3,492.28/x
3. Step 3: Cross multiply
   11,388.66x = 17,085.52 × 3,492.28
4. Step 4: Simplify right side
   11,388.66x = 59,667,419.79
5. Step 5: Solve for x
   x = 59,667,419.79/11,388.66
6. Step 6: Final answer
   x = 5,239.20