Finding the Fourth Proportional to 164,443.41, 226,931.90 and 88,991.91

Step by Step Solution

1. Step 1: Write the proportion equation
   164,443.41 : 226,931.90 = 88,991.91 : x
2. Step 2: Convert to fraction form
   164,443.41/226,931.90 = 88,991.91/x
3. Step 3: Cross multiply
   164,443.41x = 226,931.90 × 88,991.91
4. Step 4: Simplify right side
   164,443.41x = 20,195,103,443.41
5. Step 5: Solve for x
   x = 20,195,103,443.41/164,443.41
6. Step 6: Final answer
   x = 122,808.83