Finding the Fourth Proportional to 137,145.34, 188,839.78 and 120,053.94

Step by Step Solution

1. Step 1: Write the proportion equation
   137,145.34 : 188,839.78 = 120,053.94 : x
2. Step 2: Convert to fraction form
   137,145.34/188,839.78 = 120,053.94/x
3. Step 3: Cross multiply
   137,145.34x = 188,839.78 × 120,053.94
4. Step 4: Simplify right side
   137,145.34x = 22,670,959,617.73
5. Step 5: Solve for x
   x = 22,670,959,617.73/137,145.34
6. Step 6: Final answer
   x = 165,306.09