Finding the Fourth Proportional to 69,976.24, 104,960.04 and 28,422.16

Step by Step Solution

1. Step 1: Write the proportion equation
   69,976.24 : 104,960.04 = 28,422.16 : x
2. Step 2: Convert to fraction form
   69,976.24/104,960.04 = 28,422.16/x
3. Step 3: Cross multiply
   69,976.24x = 104,960.04 × 28,422.16
4. Step 4: Simplify right side
   69,976.24x = 2,983,191,050.49
5. Step 5: Solve for x
   x = 2,983,191,050.49/69,976.24
6. Step 6: Final answer
   x = 42,631.49