Finding the Fourth Proportional to 9,925.40, 13,696.99 and 5,449.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,925.40 : 13,696.99 = 5,449.23 : x
2. Step 2: Convert to fraction form
   9,925.40/13,696.99 = 5,449.23/x
3. Step 3: Cross multiply
   9,925.40x = 13,696.99 × 5,449.23
4. Step 4: Simplify right side
   9,925.40x = 74,638,048.82
5. Step 5: Solve for x
   x = 74,638,048.82/9,925.40
6. Step 6: Final answer
   x = 7,519.90