Finding the Fourth Proportional to 7,288.56, 10,059.12 and 4,145.76

Step by Step Solution

1. Step 1: Write the proportion equation
   7,288.56 : 10,059.12 = 4,145.76 : x
2. Step 2: Convert to fraction form
   7,288.56/10,059.12 = 4,145.76/x
3. Step 3: Cross multiply
   7,288.56x = 10,059.12 × 4,145.76
4. Step 4: Simplify right side
   7,288.56x = 41,702,697.33
5. Step 5: Solve for x
   x = 41,702,697.33/7,288.56
6. Step 6: Final answer
   x = 5,721.66