Finding the Fourth Proportional to 9,430.53, 13,012.69 and 5,450.87

Step by Step Solution

1. Step 1: Write the proportion equation
   9,430.53 : 13,012.69 = 5,450.87 : x
2. Step 2: Convert to fraction form
   9,430.53/13,012.69 = 5,450.87/x
3. Step 3: Cross multiply
   9,430.53x = 13,012.69 × 5,450.87
4. Step 4: Simplify right side
   9,430.53x = 70,930,481.54
5. Step 5: Solve for x
   x = 70,930,481.54/9,430.53
6. Step 6: Final answer
   x = 7,521.37