Finding the Fourth Proportional to 21,501.34, 29,643.56 and 14,774.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,501.34 : 29,643.56 = 14,774.56 : x
2. Step 2: Convert to fraction form
   21,501.34/29,643.56 = 14,774.56/x
3. Step 3: Cross multiply
   21,501.34x = 29,643.56 × 14,774.56
4. Step 4: Simplify right side
   21,501.34x = 437,970,555.83
5. Step 5: Solve for x
   x = 437,970,555.83/21,501.34
6. Step 6: Final answer
   x = 20,369.45