Finding the Fourth Proportional to 7,434.42, 10,259.42 and 4,290.54

Step by Step Solution

1. Step 1: Write the proportion equation
   7,434.42 : 10,259.42 = 4,290.54 : x
2. Step 2: Convert to fraction form
   7,434.42/10,259.42 = 4,290.54/x
3. Step 3: Cross multiply
   7,434.42x = 10,259.42 × 4,290.54
4. Step 4: Simplify right side
   7,434.42x = 44,018,430.43
5. Step 5: Solve for x
   x = 44,018,430.43/7,434.42
6. Step 6: Final answer
   x = 5,920.90