Finding the Fourth Proportional to 9,397.04, 12,970.25 and 5,420.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,397.04 : 12,970.25 = 5,420.54 : x
2. Step 2: Convert to fraction form
   9,397.04/12,970.25 = 5,420.54/x
3. Step 3: Cross multiply
   9,397.04x = 12,970.25 × 5,420.54
4. Step 4: Simplify right side
   9,397.04x = 70,305,666.98
5. Step 5: Solve for x
   x = 70,305,666.98/9,397.04
6. Step 6: Final answer
   x = 7,481.69