Finding the Fourth Proportional to 9,435.51, 13,019.97 and 5,456.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,435.51 : 13,019.97 = 5,456.02 : x
2. Step 2: Convert to fraction form
   9,435.51/13,019.97 = 5,456.02/x
3. Step 3: Cross multiply
   9,435.51x = 13,019.97 × 5,456.02
4. Step 4: Simplify right side
   9,435.51x = 71,037,216.72
5. Step 5: Solve for x
   x = 71,037,216.72/9,435.51
6. Step 6: Final answer
   x = 7,528.71