Finding the Fourth Proportional to 11,570.76, 17,356.20 and 2,805.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,570.76 : 17,356.20 = 2,805.69 : x
2. Step 2: Convert to fraction form
   11,570.76/17,356.20 = 2,805.69/x
3. Step 3: Cross multiply
   11,570.76x = 17,356.20 × 2,805.69
4. Step 4: Simplify right side
   11,570.76x = 48,696,116.78
5. Step 5: Solve for x
   x = 48,696,116.78/11,570.76
6. Step 6: Final answer
   x = 4,208.55