Finding the Fourth Proportional to 9,427.12, 13,008.42 and 5,449.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,427.12 : 13,008.42 = 5,449.49 : x
2. Step 2: Convert to fraction form
   9,427.12/13,008.42 = 5,449.49/x
3. Step 3: Cross multiply
   9,427.12x = 13,008.42 × 5,449.49
4. Step 4: Simplify right side
   9,427.12x = 70,889,254.71
5. Step 5: Solve for x
   x = 70,889,254.71/9,427.12
6. Step 6: Final answer
   x = 7,519.71