Finding the Fourth Proportional to 9,431.19, 13,013.59 and 5,451.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,431.19 : 13,013.59 = 5,451.53 : x
2. Step 2: Convert to fraction form
   9,431.19/13,013.59 = 5,451.53/x
3. Step 3: Cross multiply
   9,431.19x = 13,013.59 × 5,451.53
4. Step 4: Simplify right side
   9,431.19x = 70,943,976.29
5. Step 5: Solve for x
   x = 70,943,976.29/9,431.19
6. Step 6: Final answer
   x = 7,522.27