Finding the Fourth Proportional to 65,830.08, 90,843.84 and 38,973

Step by Step Solution

1. Step 1: Write the proportion equation
   65,830.08 : 90,843.84 = 38,973 : x
2. Step 2: Convert to fraction form
   65,830.08/90,843.84 = 38,973/x
3. Step 3: Cross multiply
   65,830.08x = 90,843.84 × 38,973
4. Step 4: Simplify right side
   65,830.08x = 3,540,456,976.32
5. Step 5: Solve for x
   x = 3,540,456,976.32/65,830.08
6. Step 6: Final answer
   x = 53,781.75