Finding the Fourth Proportional to 160,180.56, 221,038.20 and 88,559.91

Step by Step Solution

1. Step 1: Write the proportion equation
   160,180.56 : 221,038.20 = 88,559.91 : x
2. Step 2: Convert to fraction form
   160,180.56/221,038.20 = 88,559.91/x
3. Step 3: Cross multiply
   160,180.56x = 221,038.20 × 88,559.91
4. Step 4: Simplify right side
   160,180.56x = 19,575,123,098.56
5. Step 5: Solve for x
   x = 19,575,123,098.56/160,180.56
6. Step 6: Final answer
   x = 122,206.61