Finding the Fourth Proportional to 31,575.88, 47,105 and 30,717.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,575.88 : 47,105 = 30,717.82 : x
2. Step 2: Convert to fraction form
   31,575.88/47,105 = 30,717.82/x
3. Step 3: Cross multiply
   31,575.88x = 47,105 × 30,717.82
4. Step 4: Simplify right side
   31,575.88x = 1,446,962,911.10
5. Step 5: Solve for x
   x = 1,446,962,911.10/31,575.88
6. Step 6: Final answer
   x = 45,824.94