Finding the Fourth Proportional to 160,788.07, 221,872.89 and 89,167.87

Step by Step Solution

1. Step 1: Write the proportion equation
   160,788.07 : 221,872.89 = 89,167.87 : x
2. Step 2: Convert to fraction form
   160,788.07/221,872.89 = 89,167.87/x
3. Step 3: Cross multiply
   160,788.07x = 221,872.89 × 89,167.87
4. Step 4: Simplify right side
   160,788.07x = 19,783,933,012.04
5. Step 5: Solve for x
   x = 19,783,933,012.04/160,788.07
6. Step 6: Final answer
   x = 123,043.54