Finding the Fourth Proportional to 7,152.53, 10,730.30 and 2,155.05

Step by Step Solution

1. Step 1: Write the proportion equation
   7,152.53 : 10,730.30 = 2,155.05 : x
2. Step 2: Convert to fraction form
   7,152.53/10,730.30 = 2,155.05/x
3. Step 3: Cross multiply
   7,152.53x = 10,730.30 × 2,155.05
4. Step 4: Simplify right side
   7,152.53x = 23,124,322.24
5. Step 5: Solve for x
   x = 23,124,322.24/7,152.53
6. Step 6: Final answer
   x = 3,233.03