Finding the Fourth Proportional to 31,536.03, 43,521.42 and 18,109.47

Step by Step Solution

1. Step 1: Write the proportion equation
   31,536.03 : 43,521.42 = 18,109.47 : x
2. Step 2: Convert to fraction form
   31,536.03/43,521.42 = 18,109.47/x
3. Step 3: Cross multiply
   31,536.03x = 43,521.42 × 18,109.47
4. Step 4: Simplify right side
   31,536.03x = 788,149,849.85
5. Step 5: Solve for x
   x = 788,149,849.85/31,536.03
6. Step 6: Final answer
   x = 24,992.04