Finding the Fourth Proportional to 67,923.47, 93,789.42 and 42,459.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,923.47 : 93,789.42 = 42,459.50 : x
2. Step 2: Convert to fraction form
   67,923.47/93,789.42 = 42,459.50/x
3. Step 3: Cross multiply
   67,923.47x = 93,789.42 × 42,459.50
4. Step 4: Simplify right side
   67,923.47x = 3,982,251,878.49
5. Step 5: Solve for x
   x = 3,982,251,878.49/67,923.47
6. Step 6: Final answer
   x = 58,628.51