Finding the Fourth Proportional to 10,271.97, 15,407.91 and 3,698.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,271.97 : 15,407.91 = 3,698.15 : x
2. Step 2: Convert to fraction form
   10,271.97/15,407.91 = 3,698.15/x
3. Step 3: Cross multiply
   10,271.97x = 15,407.91 × 3,698.15
4. Step 4: Simplify right side
   10,271.97x = 56,980,762.37
5. Step 5: Solve for x
   x = 56,980,762.37/10,271.97
6. Step 6: Final answer
   x = 5,547.21