Finding the Fourth Proportional to 67,969.63, 101,976.11 and 28,516.15

Step by Step Solution

1. Step 1: Write the proportion equation
   67,969.63 : 101,976.11 = 28,516.15 : x
2. Step 2: Convert to fraction form
   67,969.63/101,976.11 = 28,516.15/x
3. Step 3: Cross multiply
   67,969.63x = 101,976.11 × 28,516.15
4. Step 4: Simplify right side
   67,969.63x = 2,907,965,396.72
5. Step 5: Solve for x
   x = 2,907,965,396.72/67,969.63
6. Step 6: Final answer
   x = 42,783.31