Finding the Fourth Proportional to 9,430.57, 13,012.72 and 5,450.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,430.57 : 13,012.72 = 5,450.91 : x
2. Step 2: Convert to fraction form
   9,430.57/13,012.72 = 5,450.91/x
3. Step 3: Cross multiply
   9,430.57x = 13,012.72 × 5,450.91
4. Step 4: Simplify right side
   9,430.57x = 70,931,165.58
5. Step 5: Solve for x
   x = 70,931,165.58/9,430.57
6. Step 6: Final answer
   x = 7,521.41