Finding the Fourth Proportional to 31,499.84, 43,461.92 and 20,010.56

Step by Step Solution

1. Step 1: Write the proportion equation
   31,499.84 : 43,461.92 = 20,010.56 : x
2. Step 2: Convert to fraction form
   31,499.84/43,461.92 = 20,010.56/x
3. Step 3: Cross multiply
   31,499.84x = 43,461.92 × 20,010.56
4. Step 4: Simplify right side
   31,499.84x = 869,697,357.88
5. Step 5: Solve for x
   x = 869,697,357.88/31,499.84
6. Step 6: Final answer
   x = 27,609.58