Finding the Fourth Proportional to 71,026.88, 106,540.52 and 18,436.82

Step by Step Solution

1. Step 1: Write the proportion equation
   71,026.88 : 106,540.52 = 18,436.82 : x
2. Step 2: Convert to fraction form
   71,026.88/106,540.52 = 18,436.82/x
3. Step 3: Cross multiply
   71,026.88x = 106,540.52 × 18,436.82
4. Step 4: Simplify right side
   71,026.88x = 1,964,267,765.06
5. Step 5: Solve for x
   x = 1,964,267,765.06/71,026.88
6. Step 6: Final answer
   x = 27,655.28