Finding the Fourth Proportional to 57,826, 79,799.88 and 31,330

Step by Step Solution

1. Step 1: Write the proportion equation
   57,826 : 79,799.88 = 31,330 : x
2. Step 2: Convert to fraction form
   57,826/79,799.88 = 31,330/x
3. Step 3: Cross multiply
   57,826x = 79,799.88 × 31,330
4. Step 4: Simplify right side
   57,826x = 2,500,130,240.40
5. Step 5: Solve for x
   x = 2,500,130,240.40/57,826
6. Step 6: Final answer
   x = 43,235.40