Finding the Fourth Proportional to 9,368.55, 12,929.00 and 5,389.67

Step by Step Solution

1. Step 1: Write the proportion equation
   9,368.55 : 12,929.00 = 5,389.67 : x
2. Step 2: Convert to fraction form
   9,368.55/12,929.00 = 5,389.67/x
3. Step 3: Cross multiply
   9,368.55x = 12,929.00 × 5,389.67
4. Step 4: Simplify right side
   9,368.55x = 69,683,048.80
5. Step 5: Solve for x
   x = 69,683,048.80/9,368.55
6. Step 6: Final answer
   x = 7,437.98