Finding the Fourth Proportional to 9,210.28, 12,710.20 and 5,018.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,210.28 : 12,710.20 = 5,018.56 : x
2. Step 2: Convert to fraction form
   9,210.28/12,710.20 = 5,018.56/x
3. Step 3: Cross multiply
   9,210.28x = 12,710.20 × 5,018.56
4. Step 4: Simplify right side
   9,210.28x = 63,786,901.31
5. Step 5: Solve for x
   x = 63,786,901.31/9,210.28
6. Step 6: Final answer
   x = 6,925.62