Finding the Fourth Proportional to 78,681.90, 108,548.52 and 54,822.41

Step by Step Solution

1. Step 1: Write the proportion equation
   78,681.90 : 108,548.52 = 54,822.41 : x
2. Step 2: Convert to fraction form
   78,681.90/108,548.52 = 54,822.41/x
3. Step 3: Cross multiply
   78,681.90x = 108,548.52 × 54,822.41
4. Step 4: Simplify right side
   78,681.90x = 5,950,891,468.33
5. Step 5: Solve for x
   x = 5,950,891,468.33/78,681.90
6. Step 6: Final answer
   x = 75,632.28