Finding the Fourth Proportional to 270,101.59, 405,406.62 and 137,077.31

Step by Step Solution

1. Step 1: Write the proportion equation
   270,101.59 : 405,406.62 = 137,077.31 : x
2. Step 2: Convert to fraction form
   270,101.59/405,406.62 = 137,077.31/x
3. Step 3: Cross multiply
   270,101.59x = 405,406.62 × 137,077.31
4. Step 4: Simplify right side
   270,101.59x = 55,572,049,939.31
5. Step 5: Solve for x
   x = 55,572,049,939.31/270,101.59
6. Step 6: Final answer
   x = 205,745.00