Finding the Fourth Proportional to 73,007.42, 109,469.21 and 28,582.16

Step by Step Solution

1. Step 1: Write the proportion equation
   73,007.42 : 109,469.21 = 28,582.16 : x
2. Step 2: Convert to fraction form
   73,007.42/109,469.21 = 28,582.16/x
3. Step 3: Cross multiply
   73,007.42x = 109,469.21 × 28,582.16
4. Step 4: Simplify right side
   73,007.42x = 3,128,865,785.04
5. Step 5: Solve for x
   x = 3,128,865,785.04/73,007.42
6. Step 6: Final answer
   x = 42,856.82