Finding the Fourth Proportional to 7,457.49, 10,291.57 and 4,100.45

Step by Step Solution

1. Step 1: Write the proportion equation
   7,457.49 : 10,291.57 = 4,100.45 : x
2. Step 2: Convert to fraction form
   7,457.49/10,291.57 = 4,100.45/x
3. Step 3: Cross multiply
   7,457.49x = 10,291.57 × 4,100.45
4. Step 4: Simplify right side
   7,457.49x = 42,200,006.50
5. Step 5: Solve for x
   x = 42,200,006.50/7,457.49
6. Step 6: Final answer
   x = 5,658.74