Finding the Fourth Proportional to 67,116.21, 100,671.99 and 17,196.72

Step by Step Solution

1. Step 1: Write the proportion equation
   67,116.21 : 100,671.99 = 17,196.72 : x
2. Step 2: Convert to fraction form
   67,116.21/100,671.99 = 17,196.72/x
3. Step 3: Cross multiply
   67,116.21x = 100,671.99 × 17,196.72
4. Step 4: Simplify right side
   67,116.21x = 1,731,228,023.87
5. Step 5: Solve for x
   x = 1,731,228,023.87/67,116.21
6. Step 6: Final answer
   x = 25,794.48