Finding the Fourth Proportional to 42,468.70, 63,949.90 and 31,453.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,468.70 : 63,949.90 = 31,453.42 : x
2. Step 2: Convert to fraction form
   42,468.70/63,949.90 = 31,453.42/x
3. Step 3: Cross multiply
   42,468.70x = 63,949.90 × 31,453.42
4. Step 4: Simplify right side
   42,468.70x = 2,011,443,063.66
5. Step 5: Solve for x
   x = 2,011,443,063.66/42,468.70
6. Step 6: Final answer
   x = 47,362.95