Finding the Fourth Proportional to 11,570.94, 17,356.50 and 3,779.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,570.94 : 17,356.50 = 3,779.78 : x
2. Step 2: Convert to fraction form
   11,570.94/17,356.50 = 3,779.78/x
3. Step 3: Cross multiply
   11,570.94x = 17,356.50 × 3,779.78
4. Step 4: Simplify right side
   11,570.94x = 65,603,664.79
5. Step 5: Solve for x
   x = 65,603,664.79/11,570.94
6. Step 6: Final answer
   x = 5,669.69