Finding the Fourth Proportional to 31,118.68, 42,951.54 and 18,541

Step by Step Solution

1. Step 1: Write the proportion equation
   31,118.68 : 42,951.54 = 18,541 : x
2. Step 2: Convert to fraction form
   31,118.68/42,951.54 = 18,541/x
3. Step 3: Cross multiply
   31,118.68x = 42,951.54 × 18,541
4. Step 4: Simplify right side
   31,118.68x = 796,364,503.14
5. Step 5: Solve for x
   x = 796,364,503.14/31,118.68
6. Step 6: Final answer
   x = 25,591.20