Finding the Fourth Proportional to 81,103.37, 111,860.44 and 48,804.31

Step by Step Solution

1. Step 1: Write the proportion equation
   81,103.37 : 111,860.44 = 48,804.31 : x
2. Step 2: Convert to fraction form
   81,103.37/111,860.44 = 48,804.31/x
3. Step 3: Cross multiply
   81,103.37x = 111,860.44 × 48,804.31
4. Step 4: Simplify right side
   81,103.37x = 5,459,271,590.50
5. Step 5: Solve for x
   x = 5,459,271,590.50/81,103.37
6. Step 6: Final answer
   x = 67,312.51