Finding the Fourth Proportional to 65,979.86, 91,064.39 and 37,685.54

Step by Step Solution

1. Step 1: Write the proportion equation
   65,979.86 : 91,064.39 = 37,685.54 : x
2. Step 2: Convert to fraction form
   65,979.86/91,064.39 = 37,685.54/x
3. Step 3: Cross multiply
   65,979.86x = 91,064.39 × 37,685.54
4. Step 4: Simplify right side
   65,979.86x = 3,431,810,711.92
5. Step 5: Solve for x
   x = 3,431,810,711.92/65,979.86
6. Step 6: Final answer
   x = 52,013.00