Finding the Fourth Proportional to 102,757.50, 154,162.17 and 28,885.50

Step by Step Solution

1. Step 1: Write the proportion equation
   102,757.50 : 154,162.17 = 28,885.50 : x
2. Step 2: Convert to fraction form
   102,757.50/154,162.17 = 28,885.50/x
3. Step 3: Cross multiply
   102,757.50x = 154,162.17 × 28,885.50
4. Step 4: Simplify right side
   102,757.50x = 4,453,051,361.54
5. Step 5: Solve for x
   x = 4,453,051,361.54/102,757.50
6. Step 6: Final answer
   x = 43,335.54