Finding the Fourth Proportional to 13,010.74, 19,513.41 and 4,578.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,010.74 : 19,513.41 = 4,578.37 : x
2. Step 2: Convert to fraction form
   13,010.74/19,513.41 = 4,578.37/x
3. Step 3: Cross multiply
   13,010.74x = 19,513.41 × 4,578.37
4. Step 4: Simplify right side
   13,010.74x = 89,339,610.94
5. Step 5: Solve for x
   x = 89,339,610.94/13,010.74
6. Step 6: Final answer
   x = 6,866.60