Finding the Fourth Proportional to 31,585.35, 47,364.21 and 16,790.91

Step by Step Solution

1. Step 1: Write the proportion equation
   31,585.35 : 47,364.21 = 16,790.91 : x
2. Step 2: Convert to fraction form
   31,585.35/47,364.21 = 16,790.91/x
3. Step 3: Cross multiply
   31,585.35x = 47,364.21 × 16,790.91
4. Step 4: Simplify right side
   31,585.35x = 795,288,009.72
5. Step 5: Solve for x
   x = 795,288,009.72/31,585.35
6. Step 6: Final answer
   x = 25,179.01