Finding the Fourth Proportional to 42,721.73, 58,527.79 and 41,124.45

Step by Step Solution

1. Step 1: Write the proportion equation
   42,721.73 : 58,527.79 = 41,124.45 : x
2. Step 2: Convert to fraction form
   42,721.73/58,527.79 = 41,124.45/x
3. Step 3: Cross multiply
   42,721.73x = 58,527.79 × 41,124.45
4. Step 4: Simplify right side
   42,721.73x = 2,406,923,173.47
5. Step 5: Solve for x
   x = 2,406,923,173.47/42,721.73
6. Step 6: Final answer
   x = 56,339.55