Finding the Fourth Proportional to 30,441.92, 42,128.16 and 29,923.52

Step by Step Solution

1. Step 1: Write the proportion equation
   30,441.92 : 42,128.16 = 29,923.52 : x
2. Step 2: Convert to fraction form
   30,441.92/42,128.16 = 29,923.52/x
3. Step 3: Cross multiply
   30,441.92x = 42,128.16 × 29,923.52
4. Step 4: Simplify right side
   30,441.92x = 1,260,622,838.32
5. Step 5: Solve for x
   x = 1,260,622,838.32/30,441.92
6. Step 6: Final answer
   x = 41,410.75