Finding the Fourth Proportional to 31,191.84, 43,048.80 and 17,760.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,191.84 : 43,048.80 = 17,760.42 : x
2. Step 2: Convert to fraction form
   31,191.84/43,048.80 = 17,760.42/x
3. Step 3: Cross multiply
   31,191.84x = 43,048.80 × 17,760.42
4. Step 4: Simplify right side
   31,191.84x = 764,564,768.50
5. Step 5: Solve for x
   x = 764,564,768.50/31,191.84
6. Step 6: Final answer
   x = 24,511.69