Finding the Fourth Proportional to 7,431.89, 10,256.01 and 4,288.08

Step by Step Solution

1. Step 1: Write the proportion equation
   7,431.89 : 10,256.01 = 4,288.08 : x
2. Step 2: Convert to fraction form
   7,431.89/10,256.01 = 4,288.08/x
3. Step 3: Cross multiply
   7,431.89x = 10,256.01 × 4,288.08
4. Step 4: Simplify right side
   7,431.89x = 43,978,591.36
5. Step 5: Solve for x
   x = 43,978,591.36/7,431.89
6. Step 6: Final answer
   x = 5,917.55