Finding the Fourth Proportional to 161,404.41, 242,104.65 and 72,595.20

Step by Step Solution

1. Step 1: Write the proportion equation
   161,404.41 : 242,104.65 = 72,595.20 : x
2. Step 2: Convert to fraction form
   161,404.41/242,104.65 = 72,595.20/x
3. Step 3: Cross multiply
   161,404.41x = 242,104.65 × 72,595.20
4. Step 4: Simplify right side
   161,404.41x = 17,575,636,123.34
5. Step 5: Solve for x
   x = 17,575,636,123.34/161,404.41
6. Step 6: Final answer
   x = 108,891.92