Finding the Fourth Proportional to 214,061.16, 321,156.52 and 80,982.20

Step by Step Solution

1. Step 1: Write the proportion equation
   214,061.16 : 321,156.52 = 80,982.20 : x
2. Step 2: Convert to fraction form
   214,061.16/321,156.52 = 80,982.20/x
3. Step 3: Cross multiply
   214,061.16x = 321,156.52 × 80,982.20
4. Step 4: Simplify right side
   214,061.16x = 26,007,961,533.94
5. Step 5: Solve for x
   x = 26,007,961,533.94/214,061.16
6. Step 6: Final answer
   x = 121,497.81