Finding the Fourth Proportional to 388,096.34, 582,103.56 and 103,815.58

Step by Step Solution

1. Step 1: Write the proportion equation
   388,096.34 : 582,103.56 = 103,815.58 : x
2. Step 2: Convert to fraction form
   388,096.34/582,103.56 = 103,815.58/x
3. Step 3: Cross multiply
   388,096.34x = 582,103.56 × 103,815.58
4. Step 4: Simplify right side
   388,096.34x = 60,431,418,701.46
5. Step 5: Solve for x
   x = 60,431,418,701.46/388,096.34
6. Step 6: Final answer
   x = 155,712.42