Finding the Fourth Proportional to 205,109.89, 307,650.25 and 55,358.71

Step by Step Solution

1. Step 1: Write the proportion equation
   205,109.89 : 307,650.25 = 55,358.71 : x
2. Step 2: Convert to fraction form
   205,109.89/307,650.25 = 55,358.71/x
3. Step 3: Cross multiply
   205,109.89x = 307,650.25 × 55,358.71
4. Step 4: Simplify right side
   205,109.89x = 17,031,120,271.25
5. Step 5: Solve for x
   x = 17,031,120,271.25/205,109.89
6. Step 6: Final answer
   x = 83,034.13