Finding the Fourth Proportional to 3,575.56, 5,354.01 and 2,878.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,575.56 : 5,354.01 = 2,878.42 : x
2. Step 2: Convert to fraction form
   3,575.56/5,354.01 = 2,878.42/x
3. Step 3: Cross multiply
   3,575.56x = 5,354.01 × 2,878.42
4. Step 4: Simplify right side
   3,575.56x = 15,411,089.46
5. Step 5: Solve for x
   x = 15,411,089.46/3,575.56
6. Step 6: Final answer
   x = 4,310.12