Finding the Fourth Proportional to 80,662.16, 120,999 and 21,497.52

Step by Step Solution

1. Step 1: Write the proportion equation
   80,662.16 : 120,999 = 21,497.52 : x
2. Step 2: Convert to fraction form
   80,662.16/120,999 = 21,497.52/x
3. Step 3: Cross multiply
   80,662.16x = 120,999 × 21,497.52
4. Step 4: Simplify right side
   80,662.16x = 2,601,178,422.48
5. Step 5: Solve for x
   x = 2,601,178,422.48/80,662.16
6. Step 6: Final answer
   x = 32,247.82