Finding the Fourth Proportional to 9,015.34, 13,513.88 and 4,328.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,015.34 : 13,513.88 = 4,328.50 : x
2. Step 2: Convert to fraction form
   9,015.34/13,513.88 = 4,328.50/x
3. Step 3: Cross multiply
   9,015.34x = 13,513.88 × 4,328.50
4. Step 4: Simplify right side
   9,015.34x = 58,494,762.01
5. Step 5: Solve for x
   x = 58,494,762.01/9,015.34
6. Step 6: Final answer
   x = 6,488.36