Finding the Fourth Proportional to 54,540.86, 81,762.05 and 37,908.72

Step by Step Solution

1. Step 1: Write the proportion equation
   54,540.86 : 81,762.05 = 37,908.72 : x
2. Step 2: Convert to fraction form
   54,540.86/81,762.05 = 37,908.72/x
3. Step 3: Cross multiply
   54,540.86x = 81,762.05 × 37,908.72
4. Step 4: Simplify right side
   54,540.86x = 3,099,494,470.53
5. Step 5: Solve for x
   x = 3,099,494,470.53/54,540.86
6. Step 6: Final answer
   x = 56,828.86