Finding the Fourth Proportional to 10,192.33, 15,290.79 and 3,618.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,192.33 : 15,290.79 = 3,618.51 : x
2. Step 2: Convert to fraction form
   10,192.33/15,290.79 = 3,618.51/x
3. Step 3: Cross multiply
   10,192.33x = 15,290.79 × 3,618.51
4. Step 4: Simplify right side
   10,192.33x = 55,329,876.52
5. Step 5: Solve for x
   x = 55,329,876.52/10,192.33
6. Step 6: Final answer
   x = 5,428.58