Finding the Fourth Proportional to 67,681.77, 93,357.52 and 54,285.18

Step by Step Solution

1. Step 1: Write the proportion equation
   67,681.77 : 93,357.52 = 54,285.18 : x
2. Step 2: Convert to fraction form
   67,681.77/93,357.52 = 54,285.18/x
3. Step 3: Cross multiply
   67,681.77x = 93,357.52 × 54,285.18
4. Step 4: Simplify right side
   67,681.77x = 5,067,929,777.55
5. Step 5: Solve for x
   x = 5,067,929,777.55/67,681.77
6. Step 6: Final answer
   x = 74,878.80