Finding the Fourth Proportional to 10,271.90, 15,401.40 and 4,718.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,271.90 : 15,401.40 = 4,718.10 : x
2. Step 2: Convert to fraction form
   10,271.90/15,401.40 = 4,718.10/x
3. Step 3: Cross multiply
   10,271.90x = 15,401.40 × 4,718.10
4. Step 4: Simplify right side
   10,271.90x = 72,665,345.34
5. Step 5: Solve for x
   x = 72,665,345.34/10,271.90
6. Step 6: Final answer
   x = 7,074.19