Finding the Fourth Proportional to 42,173.76, 63,243.20 and 17,196.86

Step by Step Solution

1. Step 1: Write the proportion equation
   42,173.76 : 63,243.20 = 17,196.86 : x
2. Step 2: Convert to fraction form
   42,173.76/63,243.20 = 17,196.86/x
3. Step 3: Cross multiply
   42,173.76x = 63,243.20 × 17,196.86
4. Step 4: Simplify right side
   42,173.76x = 1,087,584,456.35
5. Step 5: Solve for x
   x = 1,087,584,456.35/42,173.76
6. Step 6: Final answer
   x = 25,788.18