Finding the Fourth Proportional to 5,300.76, 7,315.72 and 3,204.88

Step by Step Solution

1. Step 1: Write the proportion equation
   5,300.76 : 7,315.72 = 3,204.88 : x
2. Step 2: Convert to fraction form
   5,300.76/7,315.72 = 3,204.88/x
3. Step 3: Cross multiply
   5,300.76x = 7,315.72 × 3,204.88
4. Step 4: Simplify right side
   5,300.76x = 23,446,004.71
5. Step 5: Solve for x
   x = 23,446,004.71/5,300.76
6. Step 6: Final answer
   x = 4,423.14