Finding the Fourth Proportional to 9,803.25, 13,528.49 and 5,612.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,803.25 : 13,528.49 = 5,612.31 : x
2. Step 2: Convert to fraction form
   9,803.25/13,528.49 = 5,612.31/x
3. Step 3: Cross multiply
   9,803.25x = 13,528.49 × 5,612.31
4. Step 4: Simplify right side
   9,803.25x = 75,926,051.65
5. Step 5: Solve for x
   x = 75,926,051.65/9,803.25
6. Step 6: Final answer
   x = 7,744.99