Finding the Fourth Proportional to 5,429.56, 7,494.78 and 4,245.88

Step by Step Solution

1. Step 1: Write the proportion equation
   5,429.56 : 7,494.78 = 4,245.88 : x
2. Step 2: Convert to fraction form
   5,429.56/7,494.78 = 4,245.88/x
3. Step 3: Cross multiply
   5,429.56x = 7,494.78 × 4,245.88
4. Step 4: Simplify right side
   5,429.56x = 31,821,936.51
5. Step 5: Solve for x
   x = 31,821,936.51/5,429.56
6. Step 6: Final answer
   x = 5,860.87