Finding the Fourth Proportional to 9,833.94, 13,557.57 and 9,528.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,833.94 : 13,557.57 = 9,528.18 : x
2. Step 2: Convert to fraction form
   9,833.94/13,557.57 = 9,528.18/x
3. Step 3: Cross multiply
   9,833.94x = 13,557.57 × 9,528.18
4. Step 4: Simplify right side
   9,833.94x = 129,178,967.32
5. Step 5: Solve for x
   x = 129,178,967.32/9,833.94
6. Step 6: Final answer
   x = 13,136.03