Finding the Fourth Proportional to 165,916.38, 248,819.94 and 53,570.10

Step by Step Solution

1. Step 1: Write the proportion equation
   165,916.38 : 248,819.94 = 53,570.10 : x
2. Step 2: Convert to fraction form
   165,916.38/248,819.94 = 53,570.10/x
3. Step 3: Cross multiply
   165,916.38x = 248,819.94 × 53,570.10
4. Step 4: Simplify right side
   165,916.38x = 13,329,309,067.79
5. Step 5: Solve for x
   x = 13,329,309,067.79/165,916.38
6. Step 6: Final answer
   x = 80,337.51