Finding the Fourth Proportional to 58,540, 80,785.18 and 31,682.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,540 : 80,785.18 = 31,682.50 : x
2. Step 2: Convert to fraction form
   58,540/80,785.18 = 31,682.50/x
3. Step 3: Cross multiply
   58,540x = 80,785.18 × 31,682.50
4. Step 4: Simplify right side
   58,540x = 2,559,476,465.35
5. Step 5: Solve for x
   x = 2,559,476,465.35/58,540
6. Step 6: Final answer
   x = 43,721.84