Finding the Fourth Proportional to 166,819, 230,210.22 and 91,369.12

Step by Step Solution

1. Step 1: Write the proportion equation
   166,819 : 230,210.22 = 91,369.12 : x
2. Step 2: Convert to fraction form
   166,819/230,210.22 = 91,369.12/x
3. Step 3: Cross multiply
   166,819x = 230,210.22 × 91,369.12
4. Step 4: Simplify right side
   166,819x = 21,034,105,216.41
5. Step 5: Solve for x
   x = 21,034,105,216.41/166,819
6. Step 6: Final answer
   x = 126,089.39