Finding the Fourth Proportional to 37,420.98, 51,591.33 and 31,023.42

Step by Step Solution

1. Step 1: Write the proportion equation
   37,420.98 : 51,591.33 = 31,023.42 : x
2. Step 2: Convert to fraction form
   37,420.98/51,591.33 = 31,023.42/x
3. Step 3: Cross multiply
   37,420.98x = 51,591.33 × 31,023.42
4. Step 4: Simplify right side
   37,420.98x = 1,600,539,498.95
5. Step 5: Solve for x
   x = 1,600,539,498.95/37,420.98
6. Step 6: Final answer
   x = 42,771.18