Finding the Fourth Proportional to 7,456.99, 10,290.90 and 4,100.06

Step by Step Solution

1. Step 1: Write the proportion equation
   7,456.99 : 10,290.90 = 4,100.06 : x
2. Step 2: Convert to fraction form
   7,456.99/10,290.90 = 4,100.06/x
3. Step 3: Cross multiply
   7,456.99x = 10,290.90 × 4,100.06
4. Step 4: Simplify right side
   7,456.99x = 42,193,307.45
5. Step 5: Solve for x
   x = 42,193,307.45/7,456.99
6. Step 6: Final answer
   x = 5,658.22