Finding the Fourth Proportional to 31,084.72, 42,900.02 and 18,984.54

Step by Step Solution

1. Step 1: Write the proportion equation
   31,084.72 : 42,900.02 = 18,984.54 : x
2. Step 2: Convert to fraction form
   31,084.72/42,900.02 = 18,984.54/x
3. Step 3: Cross multiply
   31,084.72x = 42,900.02 × 18,984.54
4. Step 4: Simplify right side
   31,084.72x = 814,437,145.69
5. Step 5: Solve for x
   x = 814,437,145.69/31,084.72
6. Step 6: Final answer
   x = 26,200.56