Finding the Fourth Proportional to 262,307.82, 361,971.98 and 149,128.14

Step by Step Solution

1. Step 1: Write the proportion equation
   262,307.82 : 361,971.98 = 149,128.14 : x
2. Step 2: Convert to fraction form
   262,307.82/361,971.98 = 149,128.14/x
3. Step 3: Cross multiply
   262,307.82x = 361,971.98 × 149,128.14
4. Step 4: Simplify right side
   262,307.82x = 53,980,208,109.52
5. Step 5: Solve for x
   x = 53,980,208,109.52/262,307.82
6. Step 6: Final answer
   x = 205,789.55