Finding the Fourth Proportional to 7,018.84, 10,528.71 and 2,856.58

Step by Step Solution

1. Step 1: Write the proportion equation
   7,018.84 : 10,528.71 = 2,856.58 : x
2. Step 2: Convert to fraction form
   7,018.84/10,528.71 = 2,856.58/x
3. Step 3: Cross multiply
   7,018.84x = 10,528.71 × 2,856.58
4. Step 4: Simplify right side
   7,018.84x = 30,076,102.41
5. Step 5: Solve for x
   x = 30,076,102.41/7,018.84
6. Step 6: Final answer
   x = 4,285.05