Finding the Fourth Proportional to 9,007.30, 12,430.56 and 5,028.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,007.30 : 12,430.56 = 5,028.49 : x
2. Step 2: Convert to fraction form
   9,007.30/12,430.56 = 5,028.49/x
3. Step 3: Cross multiply
   9,007.30x = 12,430.56 × 5,028.49
4. Step 4: Simplify right side
   9,007.30x = 62,506,946.65
5. Step 5: Solve for x
   x = 62,506,946.65/9,007.30
6. Step 6: Final answer
   x = 6,939.59