Finding the Fourth Proportional to 9,925.99, 13,698.02 and 5,450.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,925.99 : 13,698.02 = 5,450.15 : x
2. Step 2: Convert to fraction form
   9,925.99/13,698.02 = 5,450.15/x
3. Step 3: Cross multiply
   9,925.99x = 13,698.02 × 5,450.15
4. Step 4: Simplify right side
   9,925.99x = 74,656,263.70
5. Step 5: Solve for x
   x = 74,656,263.70/9,925.99
6. Step 6: Final answer
   x = 7,521.29