Finding the Fourth Proportional to 57,509.35, 79,357.33 and 42,410.14

Step by Step Solution

1. Step 1: Write the proportion equation
   57,509.35 : 79,357.33 = 42,410.14 : x
2. Step 2: Convert to fraction form
   57,509.35/79,357.33 = 42,410.14/x
3. Step 3: Cross multiply
   57,509.35x = 79,357.33 × 42,410.14
4. Step 4: Simplify right side
   57,509.35x = 3,365,555,475.33
5. Step 5: Solve for x
   x = 3,365,555,475.33/57,509.35
6. Step 6: Final answer
   x = 58,521.88