Finding the Fourth Proportional to 31,271.03, 43,160.72 and 19,937.92

Step by Step Solution

1. Step 1: Write the proportion equation
   31,271.03 : 43,160.72 = 19,937.92 : x
2. Step 2: Convert to fraction form
   31,271.03/43,160.72 = 19,937.92/x
3. Step 3: Cross multiply
   31,271.03x = 43,160.72 × 19,937.92
4. Step 4: Simplify right side
   31,271.03x = 860,534,982.50
5. Step 5: Solve for x
   x = 860,534,982.50/31,271.03
6. Step 6: Final answer
   x = 27,518.60