Finding the Fourth Proportional to 7,579.59, 10,457.01 and 7,567.91

Step by Step Solution

1. Step 1: Write the proportion equation
   7,579.59 : 10,457.01 = 7,567.91 : x
2. Step 2: Convert to fraction form
   7,579.59/10,457.01 = 7,567.91/x
3. Step 3: Cross multiply
   7,579.59x = 10,457.01 × 7,567.91
4. Step 4: Simplify right side
   7,579.59x = 79,137,710.55
5. Step 5: Solve for x
   x = 79,137,710.55/7,579.59
6. Step 6: Final answer
   x = 10,440.90