Finding the Fourth Proportional to 57,760, 79,709.04 and 31,264

Step by Step Solution

1. Step 1: Write the proportion equation
   57,760 : 79,709.04 = 31,264 : x
2. Step 2: Convert to fraction form
   57,760/79,709.04 = 31,264/x
3. Step 3: Cross multiply
   57,760x = 79,709.04 × 31,264
4. Step 4: Simplify right side
   57,760x = 2,492,023,426.56
5. Step 5: Solve for x
   x = 2,492,023,426.56/57,760
6. Step 6: Final answer
   x = 43,144.45