Finding the Fourth Proportional to 282,978.82, 424,365.51 and 154,990.18

Step by Step Solution

1. Step 1: Write the proportion equation
   282,978.82 : 424,365.51 = 154,990.18 : x
2. Step 2: Convert to fraction form
   282,978.82/424,365.51 = 154,990.18/x
3. Step 3: Cross multiply
   282,978.82x = 424,365.51 × 154,990.18
4. Step 4: Simplify right side
   282,978.82x = 65,772,484,658.86
5. Step 5: Solve for x
   x = 65,772,484,658.86/282,978.82
6. Step 6: Final answer
   x = 232,429.01