Finding the Fourth Proportional to 65,930.32, 90,981.42 and 37,634.80

Step by Step Solution

1. Step 1: Write the proportion equation
   65,930.32 : 90,981.42 = 37,634.80 : x
2. Step 2: Convert to fraction form
   65,930.32/90,981.42 = 37,634.80/x
3. Step 3: Cross multiply
   65,930.32x = 90,981.42 × 37,634.80
4. Step 4: Simplify right side
   65,930.32x = 3,424,067,545.42
5. Step 5: Solve for x
   x = 3,424,067,545.42/65,930.32
6. Step 6: Final answer
   x = 51,934.64