Finding the Fourth Proportional to 57,089.56, 85,523.52 and 42,069.42

Step by Step Solution

1. Step 1: Write the proportion equation
   57,089.56 : 85,523.52 = 42,069.42 : x
2. Step 2: Convert to fraction form
   57,089.56/85,523.52 = 42,069.42/x
3. Step 3: Cross multiply
   57,089.56x = 85,523.52 × 42,069.42
4. Step 4: Simplify right side
   57,089.56x = 3,597,924,455.14
5. Step 5: Solve for x
   x = 3,597,924,455.14/57,089.56
6. Step 6: Final answer
   x = 63,022.46