Finding the Fourth Proportional to 7,302.72, 10,091.04 and 5,203.20

Step by Step Solution

1. Step 1: Write the proportion equation
   7,302.72 : 10,091.04 = 5,203.20 : x
2. Step 2: Convert to fraction form
   7,302.72/10,091.04 = 5,203.20/x
3. Step 3: Cross multiply
   7,302.72x = 10,091.04 × 5,203.20
4. Step 4: Simplify right side
   7,302.72x = 52,505,699.33
5. Step 5: Solve for x
   x = 52,505,699.33/7,302.72
6. Step 6: Final answer
   x = 7,189.88