Finding the Fourth Proportional to 7,152.50, 10,730.13 and 3,457.28

Step by Step Solution

1. Step 1: Write the proportion equation
   7,152.50 : 10,730.13 = 3,457.28 : x
2. Step 2: Convert to fraction form
   7,152.50/10,730.13 = 3,457.28/x
3. Step 3: Cross multiply
   7,152.50x = 10,730.13 × 3,457.28
4. Step 4: Simplify right side
   7,152.50x = 37,097,063.85
5. Step 5: Solve for x
   x = 37,097,063.85/7,152.50
6. Step 6: Final answer
   x = 5,186.59