Finding the Fourth Proportional to 69,640.30, 96,103.61 and 37,809.20

Step by Step Solution

1. Step 1: Write the proportion equation
   69,640.30 : 96,103.61 = 37,809.20 : x
2. Step 2: Convert to fraction form
   69,640.30/96,103.61 = 37,809.20/x
3. Step 3: Cross multiply
   69,640.30x = 96,103.61 × 37,809.20
4. Step 4: Simplify right side
   69,640.30x = 3,633,600,443.82
5. Step 5: Solve for x
   x = 3,633,600,443.82/69,640.30
6. Step 6: Final answer
   x = 52,176.69