Finding the Fourth Proportional to 67,006.42, 100,507.16 and 17,086.05

Step by Step Solution

1. Step 1: Write the proportion equation
   67,006.42 : 100,507.16 = 17,086.05 : x
2. Step 2: Convert to fraction form
   67,006.42/100,507.16 = 17,086.05/x
3. Step 3: Cross multiply
   67,006.42x = 100,507.16 × 17,086.05
4. Step 4: Simplify right side
   67,006.42x = 1,717,270,403.83
5. Step 5: Solve for x
   x = 1,717,270,403.83/67,006.42
6. Step 6: Final answer
   x = 25,628.45