Finding the Fourth Proportional to 308,061.02, 461,040.15 and 258,197.42

Step by Step Solution

1. Step 1: Write the proportion equation
   308,061.02 : 461,040.15 = 258,197.42 : x
2. Step 2: Convert to fraction form
   308,061.02/461,040.15 = 258,197.42/x
3. Step 3: Cross multiply
   308,061.02x = 461,040.15 × 258,197.42
4. Step 4: Simplify right side
   308,061.02x = 119,039,377,246.41
5. Step 5: Solve for x
   x = 119,039,377,246.41/308,061.02
6. Step 6: Final answer
   x = 386,414.93