Finding the Fourth Proportional to 106,940.61, 160,320.69 and 67,410.57

Step by Step Solution

1. Step 1: Write the proportion equation
   106,940.61 : 160,320.69 = 67,410.57 : x
2. Step 2: Convert to fraction form
   106,940.61/160,320.69 = 67,410.57/x
3. Step 3: Cross multiply
   106,940.61x = 160,320.69 × 67,410.57
4. Step 4: Simplify right side
   106,940.61x = 10,807,309,095.69
5. Step 5: Solve for x
   x = 10,807,309,095.69/106,940.61
6. Step 6: Final answer
   x = 101,058.98