Finding the Fourth Proportional to 80,801.16, 121,193.12 and 21,642.82

Step by Step Solution

1. Step 1: Write the proportion equation
   80,801.16 : 121,193.12 = 21,642.82 : x
2. Step 2: Convert to fraction form
   80,801.16/121,193.12 = 21,642.82/x
3. Step 3: Cross multiply
   80,801.16x = 121,193.12 × 21,642.82
4. Step 4: Simplify right side
   80,801.16x = 2,622,960,881.40
5. Step 5: Solve for x
   x = 2,622,960,881.40/80,801.16
6. Step 6: Final answer
   x = 32,461.92