Finding the Fourth Proportional to 5,172.34, 7,758.15 and 2,974.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,172.34 : 7,758.15 = 2,974.18 : x
2. Step 2: Convert to fraction form
   5,172.34/7,758.15 = 2,974.18/x
3. Step 3: Cross multiply
   5,172.34x = 7,758.15 × 2,974.18
4. Step 4: Simplify right side
   5,172.34x = 23,074,134.57
5. Step 5: Solve for x
   x = 23,074,134.57/5,172.34
6. Step 6: Final answer
   x = 4,461.06