Finding the Fourth Proportional to 31,373.34, 43,315.47 and 19,449.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,373.34 : 43,315.47 = 19,449.42 : x
2. Step 2: Convert to fraction form
   31,373.34/43,315.47 = 19,449.42/x
3. Step 3: Cross multiply
   31,373.34x = 43,315.47 × 19,449.42
4. Step 4: Simplify right side
   31,373.34x = 842,460,768.53
5. Step 5: Solve for x
   x = 842,460,768.53/31,373.34
6. Step 6: Final answer
   x = 26,852.76