Finding the Fourth Proportional to 30,498.72, 45,818.17 and 21,636.06

Step by Step Solution

1. Step 1: Write the proportion equation
   30,498.72 : 45,818.17 = 21,636.06 : x
2. Step 2: Convert to fraction form
   30,498.72/45,818.17 = 21,636.06/x
3. Step 3: Cross multiply
   30,498.72x = 45,818.17 × 21,636.06
4. Step 4: Simplify right side
   30,498.72x = 991,324,446.12
5. Step 5: Solve for x
   x = 991,324,446.12/30,498.72
6. Step 6: Final answer
   x = 32,503.80