Finding the Fourth Proportional to 31,612.01, 43,617.69 and 18,859.37

Step by Step Solution

1. Step 1: Write the proportion equation
   31,612.01 : 43,617.69 = 18,859.37 : x
2. Step 2: Convert to fraction form
   31,612.01/43,617.69 = 18,859.37/x
3. Step 3: Cross multiply
   31,612.01x = 43,617.69 × 18,859.37
4. Step 4: Simplify right side
   31,612.01x = 822,601,936.17
5. Step 5: Solve for x
   x = 822,601,936.17/31,612.01
6. Step 6: Final answer
   x = 26,021.82