Finding the Fourth Proportional to 105,095.09, 145,031.22 and 67,369.34

Step by Step Solution

1. Step 1: Write the proportion equation
   105,095.09 : 145,031.22 = 67,369.34 : x
2. Step 2: Convert to fraction form
   105,095.09/145,031.22 = 67,369.34/x
3. Step 3: Cross multiply
   105,095.09x = 145,031.22 × 67,369.34
4. Step 4: Simplify right side
   105,095.09x = 9,770,657,570.79
5. Step 5: Solve for x
   x = 9,770,657,570.79/105,095.09
6. Step 6: Final answer
   x = 92,969.69