Finding the Fourth Proportional to 21,404.13, 29,527.74 and 13,852.89

Step by Step Solution

1. Step 1: Write the proportion equation
   21,404.13 : 29,527.74 = 13,852.89 : x
2. Step 2: Convert to fraction form
   21,404.13/29,527.74 = 13,852.89/x
3. Step 3: Cross multiply
   21,404.13x = 29,527.74 × 13,852.89
4. Step 4: Simplify right side
   21,404.13x = 409,044,534.17
5. Step 5: Solve for x
   x = 409,044,534.17/21,404.13
6. Step 6: Final answer
   x = 19,110.54