Finding the Fourth Proportional to 34,491.34, 47,589.28 and 21,057.69

Step by Step Solution

1. Step 1: Write the proportion equation
   34,491.34 : 47,589.28 = 21,057.69 : x
2. Step 2: Convert to fraction form
   34,491.34/47,589.28 = 21,057.69/x
3. Step 3: Cross multiply
   34,491.34x = 47,589.28 × 21,057.69
4. Step 4: Simplify right side
   34,491.34x = 1,002,120,305.56
5. Step 5: Solve for x
   x = 1,002,120,305.56/34,491.34
6. Step 6: Final answer
   x = 29,054.26