Finding the Fourth Proportional to 70,084.80, 105,180.96 and 28,566.72

Step by Step Solution

1. Step 1: Write the proportion equation
   70,084.80 : 105,180.96 = 28,566.72 : x
2. Step 2: Convert to fraction form
   70,084.80/105,180.96 = 28,566.72/x
3. Step 3: Cross multiply
   70,084.80x = 105,180.96 × 28,566.72
4. Step 4: Simplify right side
   70,084.80x = 3,004,675,033.65
5. Step 5: Solve for x
   x = 3,004,675,033.65/70,084.80
6. Step 6: Final answer
   x = 42,871.99