Finding the Fourth Proportional to 166,994.34, 230,453.55 and 91,543.38

Step by Step Solution

1. Step 1: Write the proportion equation
   166,994.34 : 230,453.55 = 91,543.38 : x
2. Step 2: Convert to fraction form
   166,994.34/230,453.55 = 91,543.38/x
3. Step 3: Cross multiply
   166,994.34x = 230,453.55 × 91,543.38
4. Step 4: Simplify right side
   166,994.34x = 21,096,496,900.00
5. Step 5: Solve for x
   x = 21,096,496,900.00/166,994.34
6. Step 6: Final answer
   x = 126,330.61