Finding the Fourth Proportional to 9,401.54, 12,974.93 and 5,210.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,401.54 : 12,974.93 = 5,210.60 : x
2. Step 2: Convert to fraction form
   9,401.54/12,974.93 = 5,210.60/x
3. Step 3: Cross multiply
   9,401.54x = 12,974.93 × 5,210.60
4. Step 4: Simplify right side
   9,401.54x = 67,607,079.33
5. Step 5: Solve for x
   x = 67,607,079.33/9,401.54
6. Step 6: Final answer
   x = 7,191.07