Finding the Fourth Proportional to 65,977.91, 91,061.71 and 37,683.60

Step by Step Solution

1. Step 1: Write the proportion equation
   65,977.91 : 91,061.71 = 37,683.60 : x
2. Step 2: Convert to fraction form
   65,977.91/91,061.71 = 37,683.60/x
3. Step 3: Cross multiply
   65,977.91x = 91,061.71 × 37,683.60
4. Step 4: Simplify right side
   65,977.91x = 3,431,533,054.96
5. Step 5: Solve for x
   x = 3,431,533,054.96/65,977.91
6. Step 6: Final answer
   x = 52,010.33