Finding the Fourth Proportional to 48,824.06, 67,376.61 and 28,682.78

Step by Step Solution

1. Step 1: Write the proportion equation
   48,824.06 : 67,376.61 = 28,682.78 : x
2. Step 2: Convert to fraction form
   48,824.06/67,376.61 = 28,682.78/x
3. Step 3: Cross multiply
   48,824.06x = 67,376.61 × 28,682.78
4. Step 4: Simplify right side
   48,824.06x = 1,932,548,144.89
5. Step 5: Solve for x
   x = 1,932,548,144.89/48,824.06
6. Step 6: Final answer
   x = 39,581.89