Finding the Fourth Proportional to 165,404.10, 248,091.40 and 53,053.82

Step by Step Solution

1. Step 1: Write the proportion equation
   165,404.10 : 248,091.40 = 53,053.82 : x
2. Step 2: Convert to fraction form
   165,404.10/248,091.40 = 53,053.82/x
3. Step 3: Cross multiply
   165,404.10x = 248,091.40 × 53,053.82
4. Step 4: Simplify right side
   165,404.10x = 13,162,196,479.15
5. Step 5: Solve for x
   x = 13,162,196,479.15/165,404.10
6. Step 6: Final answer
   x = 79,576.00