Finding the Fourth Proportional to 149,061.39, 205,686.03 and 100,768.38

Step by Step Solution

1. Step 1: Write the proportion equation
   149,061.39 : 205,686.03 = 100,768.38 : x
2. Step 2: Convert to fraction form
   149,061.39/205,686.03 = 100,768.38/x
3. Step 3: Cross multiply
   149,061.39x = 205,686.03 × 100,768.38
4. Step 4: Simplify right side
   149,061.39x = 20,726,648,216.78
5. Step 5: Solve for x
   x = 20,726,648,216.78/149,061.39
6. Step 6: Final answer
   x = 139,047.73