Finding the Fourth Proportional to 267,404.22, 401,109.57 and 89,910.54

Step by Step Solution

1. Step 1: Write the proportion equation
   267,404.22 : 401,109.57 = 89,910.54 : x
2. Step 2: Convert to fraction form
   267,404.22/401,109.57 = 89,910.54/x
3. Step 3: Cross multiply
   267,404.22x = 401,109.57 × 89,910.54
4. Step 4: Simplify right side
   267,404.22x = 36,063,978,037.87
5. Step 5: Solve for x
   x = 36,063,978,037.87/267,404.22
6. Step 6: Final answer
   x = 134,866.90