Finding the Fourth Proportional to 70,896.62, 106,389.27 and 28,776.69

Step by Step Solution

1. Step 1: Write the proportion equation
   70,896.62 : 106,389.27 = 28,776.69 : x
2. Step 2: Convert to fraction form
   70,896.62/106,389.27 = 28,776.69/x
3. Step 3: Cross multiply
   70,896.62x = 106,389.27 × 28,776.69
4. Step 4: Simplify right side
   70,896.62x = 3,061,531,042.12
5. Step 5: Solve for x
   x = 3,061,531,042.12/70,896.62
6. Step 6: Final answer
   x = 43,183.03