Finding the Fourth Proportional to 9,384.03, 12,949.92 and 5,406.39

Step by Step Solution

1. Step 1: Write the proportion equation
   9,384.03 : 12,949.92 = 5,406.39 : x
2. Step 2: Convert to fraction form
   9,384.03/12,949.92 = 5,406.39/x
3. Step 3: Cross multiply
   9,384.03x = 12,949.92 × 5,406.39
4. Step 4: Simplify right side
   9,384.03x = 70,012,317.99
5. Step 5: Solve for x
   x = 70,012,317.99/9,384.03
6. Step 6: Final answer
   x = 7,460.79