Finding the Fourth Proportional to 9,428.25, 13,012.41 and 5,449.26

Step by Step Solution

1. Step 1: Write the proportion equation
   9,428.25 : 13,012.41 = 5,449.26 : x
2. Step 2: Convert to fraction form
   9,428.25/13,012.41 = 5,449.26/x
3. Step 3: Cross multiply
   9,428.25x = 13,012.41 × 5,449.26
4. Step 4: Simplify right side
   9,428.25x = 70,908,005.32
5. Step 5: Solve for x
   x = 70,908,005.32/9,428.25
6. Step 6: Final answer
   x = 7,520.80