Finding the Fourth Proportional to 9,513.09, 13,125.83 and 5,531.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,513.09 : 13,125.83 = 5,531.81 : x
2. Step 2: Convert to fraction form
   9,513.09/13,125.83 = 5,531.81/x
3. Step 3: Cross multiply
   9,513.09x = 13,125.83 × 5,531.81
4. Step 4: Simplify right side
   9,513.09x = 72,609,504.36
5. Step 5: Solve for x
   x = 72,609,504.36/9,513.09
6. Step 6: Final answer
   x = 7,632.59