Finding the Fourth Proportional to 11,389.81, 17,093.82 and 4,820.57

Step by Step Solution

1. Step 1: Write the proportion equation
   11,389.81 : 17,093.82 = 4,820.57 : x
2. Step 2: Convert to fraction form
   11,389.81/17,093.82 = 4,820.57/x
3. Step 3: Cross multiply
   11,389.81x = 17,093.82 × 4,820.57
4. Step 4: Simplify right side
   11,389.81x = 82,401,955.88
5. Step 5: Solve for x
   x = 82,401,955.88/11,389.81
6. Step 6: Final answer
   x = 7,234.71