Finding the Fourth Proportional to 11,790.54, 17,678.58 and 5,028.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,790.54 : 17,678.58 = 5,028.18 : x
2. Step 2: Convert to fraction form
   11,790.54/17,678.58 = 5,028.18/x
3. Step 3: Cross multiply
   11,790.54x = 17,678.58 × 5,028.18
4. Step 4: Simplify right side
   11,790.54x = 88,891,082.38
5. Step 5: Solve for x
   x = 88,891,082.38/11,790.54
6. Step 6: Final answer
   x = 7,539.19