Finding the Fourth Proportional to 7,559.21, 10,426.02 and 5,321.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,559.21 : 10,426.02 = 5,321.72 : x
2. Step 2: Convert to fraction form
   7,559.21/10,426.02 = 5,321.72/x
3. Step 3: Cross multiply
   7,559.21x = 10,426.02 × 5,321.72
4. Step 4: Simplify right side
   7,559.21x = 55,484,307.02
5. Step 5: Solve for x
   x = 55,484,307.02/7,559.21
6. Step 6: Final answer
   x = 7,339.97