Finding the Fourth Proportional to 340,410.72, 510,691.91 and 103,771.83

Step by Step Solution

1. Step 1: Write the proportion equation
   340,410.72 : 510,691.91 = 103,771.83 : x
2. Step 2: Convert to fraction form
   340,410.72/510,691.91 = 103,771.83/x
3. Step 3: Cross multiply
   340,410.72x = 510,691.91 × 103,771.83
4. Step 4: Simplify right side
   340,410.72x = 52,995,433,548.04
5. Step 5: Solve for x
   x = 52,995,433,548.04/340,410.72
6. Step 6: Final answer
   x = 155,680.86