Finding the Fourth Proportional to 160,870.74, 221,979.33 and 107,190.42

Step by Step Solution

1. Step 1: Write the proportion equation
   160,870.74 : 221,979.33 = 107,190.42 : x
2. Step 2: Convert to fraction form
   160,870.74/221,979.33 = 107,190.42/x
3. Step 3: Cross multiply
   160,870.74x = 221,979.33 × 107,190.42
4. Step 4: Simplify right side
   160,870.74x = 23,794,057,614.02
5. Step 5: Solve for x
   x = 23,794,057,614.02/160,870.74
6. Step 6: Final answer
   x = 147,907.93