Finding the Fourth Proportional to 21,417.62, 29,569.72 and 13,764

Step by Step Solution

1. Step 1: Write the proportion equation
   21,417.62 : 29,569.72 = 13,764 : x
2. Step 2: Convert to fraction form
   21,417.62/29,569.72 = 13,764/x
3. Step 3: Cross multiply
   21,417.62x = 29,569.72 × 13,764
4. Step 4: Simplify right side
   21,417.62x = 406,997,591.67
5. Step 5: Solve for x
   x = 406,997,591.67/21,417.62
6. Step 6: Final answer
   x = 19,002.93