Finding the Fourth Proportional to 21,980.32, 32,975.94 and 6,397.94

Step by Step Solution

1. Step 1: Write the proportion equation
   21,980.32 : 32,975.94 = 6,397.94 : x
2. Step 2: Convert to fraction form
   21,980.32/32,975.94 = 6,397.94/x
3. Step 3: Cross multiply
   21,980.32x = 32,975.94 × 6,397.94
4. Step 4: Simplify right side
   21,980.32x = 210,978,085.56
5. Step 5: Solve for x
   x = 210,978,085.56/21,980.32
6. Step 6: Final answer
   x = 9,598.50