Finding the Fourth Proportional to 31,277.34, 43,162.74 and 17,131.05

Step by Step Solution

1. Step 1: Write the proportion equation
   31,277.34 : 43,162.74 = 17,131.05 : x
2. Step 2: Convert to fraction form
   31,277.34/43,162.74 = 17,131.05/x
3. Step 3: Cross multiply
   31,277.34x = 43,162.74 × 17,131.05
4. Step 4: Simplify right side
   31,277.34x = 739,423,057.08
5. Step 5: Solve for x
   x = 739,423,057.08/31,277.34
6. Step 6: Final answer
   x = 23,640.85