Finding the Fourth Proportional to 31,300.94, 43,187.58 and 18,557.10

Step by Step Solution

1. Step 1: Write the proportion equation
   31,300.94 : 43,187.58 = 18,557.10 : x
2. Step 2: Convert to fraction form
   31,300.94/43,187.58 = 18,557.10/x
3. Step 3: Cross multiply
   31,300.94x = 43,187.58 × 18,557.10
4. Step 4: Simplify right side
   31,300.94x = 801,436,240.82
5. Step 5: Solve for x
   x = 801,436,240.82/31,300.94
6. Step 6: Final answer
   x = 25,604.23