Finding the Fourth Proportional to 31,440.69, 47,146.46 and 18,296.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,440.69 : 47,146.46 = 18,296.82 : x
2. Step 2: Convert to fraction form
   31,440.69/47,146.46 = 18,296.82/x
3. Step 3: Cross multiply
   31,440.69x = 47,146.46 × 18,296.82
4. Step 4: Simplify right side
   31,440.69x = 862,630,200.77
5. Step 5: Solve for x
   x = 862,630,200.77/31,440.69
6. Step 6: Final answer
   x = 27,436.75