Finding the Fourth Proportional to 31,524.69, 43,500.34 and 21,449.91

Step by Step Solution

1. Step 1: Write the proportion equation
   31,524.69 : 43,500.34 = 21,449.91 : x
2. Step 2: Convert to fraction form
   31,524.69/43,500.34 = 21,449.91/x
3. Step 3: Cross multiply
   31,524.69x = 43,500.34 × 21,449.91
4. Step 4: Simplify right side
   31,524.69x = 933,078,567.91
5. Step 5: Solve for x
   x = 933,078,567.91/31,524.69
6. Step 6: Final answer
   x = 29,598.34