Finding the Fourth Proportional to 9,303.99, 12,837.51 and 5,528.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,303.99 : 12,837.51 = 5,528.43 : x
2. Step 2: Convert to fraction form
   9,303.99/12,837.51 = 5,528.43/x
3. Step 3: Cross multiply
   9,303.99x = 12,837.51 × 5,528.43
4. Step 4: Simplify right side
   9,303.99x = 70,971,275.41
5. Step 5: Solve for x
   x = 70,971,275.41/9,303.99
6. Step 6: Final answer
   x = 7,628.05