Finding the Fourth Proportional to 9,923.99, 13,695.26 and 5,448.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,923.99 : 13,695.26 = 5,448.15 : x
2. Step 2: Convert to fraction form
   9,923.99/13,695.26 = 5,448.15/x
3. Step 3: Cross multiply
   9,923.99x = 13,695.26 × 5,448.15
4. Step 4: Simplify right side
   9,923.99x = 74,613,803.53
5. Step 5: Solve for x
   x = 74,613,803.53/9,923.99
6. Step 6: Final answer
   x = 7,518.53