Finding the Fourth Proportional to 37,869.90, 52,217.37 and 31,042.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,869.90 : 52,217.37 = 31,042.50 : x
2. Step 2: Convert to fraction form
   37,869.90/52,217.37 = 31,042.50/x
3. Step 3: Cross multiply
   37,869.90x = 52,217.37 × 31,042.50
4. Step 4: Simplify right side
   37,869.90x = 1,620,957,708.23
5. Step 5: Solve for x
   x = 1,620,957,708.23/37,869.90
6. Step 6: Final answer
   x = 42,803.33