Finding the Fourth Proportional to 40,449.98, 60,680.45 and 37,989.61

Step by Step Solution

1. Step 1: Write the proportion equation
   40,449.98 : 60,680.45 = 37,989.61 : x
2. Step 2: Convert to fraction form
   40,449.98/60,680.45 = 37,989.61/x
3. Step 3: Cross multiply
   40,449.98x = 60,680.45 × 37,989.61
4. Step 4: Simplify right side
   40,449.98x = 2,305,226,573.40
5. Step 5: Solve for x
   x = 2,305,226,573.40/40,449.98
6. Step 6: Final answer
   x = 56,989.56