Finding the Fourth Proportional to 9,925.99, 13,697.53 and 5,449.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,925.99 : 13,697.53 = 5,449.72 : x
2. Step 2: Convert to fraction form
   9,925.99/13,697.53 = 5,449.72/x
3. Step 3: Cross multiply
   9,925.99x = 13,697.53 × 5,449.72
4. Step 4: Simplify right side
   9,925.99x = 74,647,703.19
5. Step 5: Solve for x
   x = 74,647,703.19/9,925.99
6. Step 6: Final answer
   x = 7,520.43