Finding the Fourth Proportional to 9,904.97, 13,669.15 and 5,429.01

Step by Step Solution

1. Step 1: Write the proportion equation
   9,904.97 : 13,669.15 = 5,429.01 : x
2. Step 2: Convert to fraction form
   9,904.97/13,669.15 = 5,429.01/x
3. Step 3: Cross multiply
   9,904.97x = 13,669.15 × 5,429.01
4. Step 4: Simplify right side
   9,904.97x = 74,209,952.04
5. Step 5: Solve for x
   x = 74,209,952.04/9,904.97
6. Step 6: Final answer
   x = 7,492.19