Finding the Fourth Proportional to 7,457.72, 10,291.69 and 4,100.75

Step by Step Solution

1. Step 1: Write the proportion equation
   7,457.72 : 10,291.69 = 4,100.75 : x
2. Step 2: Convert to fraction form
   7,457.72/10,291.69 = 4,100.75/x
3. Step 3: Cross multiply
   7,457.72x = 10,291.69 × 4,100.75
4. Step 4: Simplify right side
   7,457.72x = 42,203,585.11
5. Step 5: Solve for x
   x = 42,203,585.11/7,457.72
6. Step 6: Final answer
   x = 5,659.05