Finding the Fourth Proportional to 166,087, 249,132.78 and 55,279

Step by Step Solution

1. Step 1: Write the proportion equation
   166,087 : 249,132.78 = 55,279 : x
2. Step 2: Convert to fraction form
   166,087/249,132.78 = 55,279/x
3. Step 3: Cross multiply
   166,087x = 249,132.78 × 55,279
4. Step 4: Simplify right side
   166,087x = 13,771,810,945.62
5. Step 5: Solve for x
   x = 13,771,810,945.62/166,087
6. Step 6: Final answer
   x = 82,919.26