Finding the Fourth Proportional to 65,978.86, 91,063.01 and 37,684.54

Step by Step Solution

1. Step 1: Write the proportion equation
   65,978.86 : 91,063.01 = 37,684.54 : x
2. Step 2: Convert to fraction form
   65,978.86/91,063.01 = 37,684.54/x
3. Step 3: Cross multiply
   65,978.86x = 91,063.01 × 37,684.54
4. Step 4: Simplify right side
   65,978.86x = 3,431,667,642.87
5. Step 5: Solve for x
   x = 3,431,667,642.87/65,978.86
6. Step 6: Final answer
   x = 52,011.62