Finding the Fourth Proportional to 11,745.12, 17,594.64 and 5,155.68

Step by Step Solution

1. Step 1: Write the proportion equation
   11,745.12 : 17,594.64 = 5,155.68 : x
2. Step 2: Convert to fraction form
   11,745.12/17,594.64 = 5,155.68/x
3. Step 3: Cross multiply
   11,745.12x = 17,594.64 × 5,155.68
4. Step 4: Simplify right side
   11,745.12x = 90,712,333.56
5. Step 5: Solve for x
   x = 90,712,333.56/11,745.12
6. Step 6: Final answer
   x = 7,723.41