Finding the Fourth Proportional to 340,407.72, 510,687.41 and 103,768.83

Step by Step Solution

1. Step 1: Write the proportion equation
   340,407.72 : 510,687.41 = 103,768.83 : x
2. Step 2: Convert to fraction form
   340,407.72/510,687.41 = 103,768.83/x
3. Step 3: Cross multiply
   340,407.72x = 510,687.41 × 103,768.83
4. Step 4: Simplify right side
   340,407.72x = 52,993,434,512.59
5. Step 5: Solve for x
   x = 52,993,434,512.59/340,407.72
6. Step 6: Final answer
   x = 155,676.36