Finding the Fourth Proportional to 166,920.72, 250,419.24 and 56,112.72

Step by Step Solution

1. Step 1: Write the proportion equation
   166,920.72 : 250,419.24 = 56,112.72 : x
2. Step 2: Convert to fraction form
   166,920.72/250,419.24 = 56,112.72/x
3. Step 3: Cross multiply
   166,920.72x = 250,419.24 × 56,112.72
4. Step 4: Simplify right side
   166,920.72x = 14,051,704,696.73
5. Step 5: Solve for x
   x = 14,051,704,696.73/166,920.72
6. Step 6: Final answer
   x = 84,181.91