Finding the Fourth Proportional to 9,431.59, 13,015.94 and 5,453.95

Step by Step Solution

1. Step 1: Write the proportion equation
   9,431.59 : 13,015.94 = 5,453.95 : x
2. Step 2: Convert to fraction form
   9,431.59/13,015.94 = 5,453.95/x
3. Step 3: Cross multiply
   9,431.59x = 13,015.94 × 5,453.95
4. Step 4: Simplify right side
   9,431.59x = 70,988,285.96
5. Step 5: Solve for x
   x = 70,988,285.96/9,431.59
6. Step 6: Final answer
   x = 7,526.65