Finding the Fourth Proportional to 7,018.64, 10,522.56 and 2,801.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,018.64 : 10,522.56 = 2,801.42 : x
2. Step 2: Convert to fraction form
   7,018.64/10,522.56 = 2,801.42/x
3. Step 3: Cross multiply
   7,018.64x = 10,522.56 × 2,801.42
4. Step 4: Simplify right side
   7,018.64x = 29,478,110.04
5. Step 5: Solve for x
   x = 29,478,110.04/7,018.64
6. Step 6: Final answer
   x = 4,199.97