Finding the Fourth Proportional to 67,388.21, 101,144.38 and 34,131.43

Step by Step Solution

1. Step 1: Write the proportion equation
   67,388.21 : 101,144.38 = 34,131.43 : x
2. Step 2: Convert to fraction form
   67,388.21/101,144.38 = 34,131.43/x
3. Step 3: Cross multiply
   67,388.21x = 101,144.38 × 34,131.43
4. Step 4: Simplify right side
   67,388.21x = 3,452,201,987.67
5. Step 5: Solve for x
   x = 3,452,201,987.67/67,388.21
6. Step 6: Final answer
   x = 51,228.58