Finding the Fourth Proportional to 160,196.80, 221,076.24 and 87,603.96

Step by Step Solution

1. Step 1: Write the proportion equation
   160,196.80 : 221,076.24 = 87,603.96 : x
2. Step 2: Convert to fraction form
   160,196.80/221,076.24 = 87,603.96/x
3. Step 3: Cross multiply
   160,196.80x = 221,076.24 × 87,603.96
4. Step 4: Simplify right side
   160,196.80x = 19,367,154,085.91
5. Step 5: Solve for x
   x = 19,367,154,085.91/160,196.80
6. Step 6: Final answer
   x = 120,896.01