Finding the Fourth Proportional to 10,018.41, 15,033.75 and 5,091.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,018.41 : 15,033.75 = 5,091.57 : x
2. Step 2: Convert to fraction form
   10,018.41/15,033.75 = 5,091.57/x
3. Step 3: Cross multiply
   10,018.41x = 15,033.75 × 5,091.57
4. Step 4: Simplify right side
   10,018.41x = 76,545,390.49
5. Step 5: Solve for x
   x = 76,545,390.49/10,018.41
6. Step 6: Final answer
   x = 7,640.47