Finding the Fourth Proportional to 67,917.30, 101,885.68 and 21,173.82

Step by Step Solution

1. Step 1: Write the proportion equation
   67,917.30 : 101,885.68 = 21,173.82 : x
2. Step 2: Convert to fraction form
   67,917.30/101,885.68 = 21,173.82/x
3. Step 3: Cross multiply
   67,917.30x = 101,885.68 × 21,173.82
4. Step 4: Simplify right side
   67,917.30x = 2,157,309,048.90
5. Step 5: Solve for x
   x = 2,157,309,048.90/67,917.30
6. Step 6: Final answer
   x = 31,763.76