Finding the Fourth Proportional to 65,979.42, 91,063.77 and 37,685.10

Step by Step Solution

1. Step 1: Write the proportion equation
   65,979.42 : 91,063.77 = 37,685.10 : x
2. Step 2: Convert to fraction form
   65,979.42/91,063.77 = 37,685.10/x
3. Step 3: Cross multiply
   65,979.42x = 91,063.77 × 37,685.10
4. Step 4: Simplify right side
   65,979.42x = 3,431,747,278.83
5. Step 5: Solve for x
   x = 3,431,747,278.83/65,979.42
6. Step 6: Final answer
   x = 52,012.39