Finding the Fourth Proportional to 31,120.31, 46,638.60 and 17,059.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,120.31 : 46,638.60 = 17,059.25 : x
2. Step 2: Convert to fraction form
   31,120.31/46,638.60 = 17,059.25/x
3. Step 3: Cross multiply
   31,120.31x = 46,638.60 × 17,059.25
4. Step 4: Simplify right side
   31,120.31x = 795,619,303.86
5. Step 5: Solve for x
   x = 795,619,303.86/31,120.31
6. Step 6: Final answer
   x = 25,565.92