Finding the Fourth Proportional to 65,979.56, 91,056.90 and 37,694.12

Step by Step Solution

1. Step 1: Write the proportion equation
   65,979.56 : 91,056.90 = 37,694.12 : x
2. Step 2: Convert to fraction form
   65,979.56/91,056.90 = 37,694.12/x
3. Step 3: Cross multiply
   65,979.56x = 91,056.90 × 37,694.12
4. Step 4: Simplify right side
   65,979.56x = 3,432,309,715.43
5. Step 5: Solve for x
   x = 3,432,309,715.43/65,979.56
6. Step 6: Final answer
   x = 52,020.80