Finding the Fourth Proportional to 54,109.60, 81,132.72 and 19,042.72

Step by Step Solution

1. Step 1: Write the proportion equation
   54,109.60 : 81,132.72 = 19,042.72 : x
2. Step 2: Convert to fraction form
   54,109.60/81,132.72 = 19,042.72/x
3. Step 3: Cross multiply
   54,109.60x = 81,132.72 × 19,042.72
4. Step 4: Simplify right side
   54,109.60x = 1,544,987,669.80
5. Step 5: Solve for x
   x = 1,544,987,669.80/54,109.60
6. Step 6: Final answer
   x = 28,552.93