Finding the Fourth Proportional to 31,643.46, 43,672.50 and 19,710.54

Step by Step Solution

1. Step 1: Write the proportion equation
   31,643.46 : 43,672.50 = 19,710.54 : x
2. Step 2: Convert to fraction form
   31,643.46/43,672.50 = 19,710.54/x
3. Step 3: Cross multiply
   31,643.46x = 43,672.50 × 19,710.54
4. Step 4: Simplify right side
   31,643.46x = 860,808,558.15
5. Step 5: Solve for x
   x = 860,808,558.15/31,643.46
6. Step 6: Final answer
   x = 27,203.36