Finding the Fourth Proportional to 325,157.31, 487,614.78 and 111,865.59

Step by Step Solution

1. Step 1: Write the proportion equation
   325,157.31 : 487,614.78 = 111,865.59 : x
2. Step 2: Convert to fraction form
   325,157.31/487,614.78 = 111,865.59/x
3. Step 3: Cross multiply
   325,157.31x = 487,614.78 × 111,865.59
4. Step 4: Simplify right side
   325,157.31x = 54,547,315,057.42
5. Step 5: Solve for x
   x = 54,547,315,057.42/325,157.31
6. Step 6: Final answer
   x = 167,756.69