Finding the Fourth Proportional to 42,358.54, 63,540.78 and 17,399.86

Step by Step Solution

1. Step 1: Write the proportion equation
   42,358.54 : 63,540.78 = 17,399.86 : x
2. Step 2: Convert to fraction form
   42,358.54/63,540.78 = 17,399.86/x
3. Step 3: Cross multiply
   42,358.54x = 63,540.78 × 17,399.86
4. Step 4: Simplify right side
   42,358.54x = 1,105,600,676.29
5. Step 5: Solve for x
   x = 1,105,600,676.29/42,358.54
6. Step 6: Final answer
   x = 26,101.01