Finding the Fourth Proportional to 9,803.30, 13,528.69 and 5,327.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,803.30 : 13,528.69 = 5,327.12 : x
2. Step 2: Convert to fraction form
   9,803.30/13,528.69 = 5,327.12/x
3. Step 3: Cross multiply
   9,803.30x = 13,528.69 × 5,327.12
4. Step 4: Simplify right side
   9,803.30x = 72,068,975.58
5. Step 5: Solve for x
   x = 72,068,975.58/9,803.30
6. Step 6: Final answer
   x = 7,351.51