Finding the Fourth Proportional to 7,458.50, 10,303.89 and 4,912.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,458.50 : 10,303.89 = 4,912.31 : x
2. Step 2: Convert to fraction form
   7,458.50/10,303.89 = 4,912.31/x
3. Step 3: Cross multiply
   7,458.50x = 10,303.89 × 4,912.31
4. Step 4: Simplify right side
   7,458.50x = 50,615,901.89
5. Step 5: Solve for x
   x = 50,615,901.89/7,458.50
6. Step 6: Final answer
   x = 6,786.34