Finding the Fourth Proportional to 282,196.32, 389,440.32 and 154,878.84

Step by Step Solution

1. Step 1: Write the proportion equation
   282,196.32 : 389,440.32 = 154,878.84 : x
2. Step 2: Convert to fraction form
   282,196.32/389,440.32 = 154,878.84/x
3. Step 3: Cross multiply
   282,196.32x = 389,440.32 × 154,878.84
4. Step 4: Simplify right side
   282,196.32x = 60,316,065,010.83
5. Step 5: Solve for x
   x = 60,316,065,010.83/282,196.32
6. Step 6: Final answer
   x = 213,737.96