Finding the Fourth Proportional to 42,618.09, 58,919.25 and 31,989.27

Step by Step Solution

1. Step 1: Write the proportion equation
   42,618.09 : 58,919.25 = 31,989.27 : x
2. Step 2: Convert to fraction form
   42,618.09/58,919.25 = 31,989.27/x
3. Step 3: Cross multiply
   42,618.09x = 58,919.25 × 31,989.27
4. Step 4: Simplify right side
   42,618.09x = 1,884,783,796.45
5. Step 5: Solve for x
   x = 1,884,783,796.45/42,618.09
6. Step 6: Final answer
   x = 44,224.97