Finding the Fourth Proportional to 81,078.52, 111,907.02 and 47,555.32

Step by Step Solution

1. Step 1: Write the proportion equation
   81,078.52 : 111,907.02 = 47,555.32 : x
2. Step 2: Convert to fraction form
   81,078.52/111,907.02 = 47,555.32/x
3. Step 3: Cross multiply
   81,078.52x = 111,907.02 × 47,555.32
4. Step 4: Simplify right side
   81,078.52x = 5,321,774,146.35
5. Step 5: Solve for x
   x = 5,321,774,146.35/81,078.52
6. Step 6: Final answer
   x = 65,637.29