Finding the Fourth Proportional to 164,384.15, 226,847.88 and 91,788.15

Step by Step Solution

1. Step 1: Write the proportion equation
   164,384.15 : 226,847.88 = 91,788.15 : x
2. Step 2: Convert to fraction form
   164,384.15/226,847.88 = 91,788.15/x
3. Step 3: Cross multiply
   164,384.15x = 226,847.88 × 91,788.15
4. Step 4: Simplify right side
   164,384.15x = 20,821,948,087.30
5. Step 5: Solve for x
   x = 20,821,948,087.30/164,384.15
6. Step 6: Final answer
   x = 126,666.40