Finding the Fourth Proportional to 21,415.39, 29,525.72 and 13,848.37

Step by Step Solution

1. Step 1: Write the proportion equation
   21,415.39 : 29,525.72 = 13,848.37 : x
2. Step 2: Convert to fraction form
   21,415.39/29,525.72 = 13,848.37/x
3. Step 3: Cross multiply
   21,415.39x = 29,525.72 × 13,848.37
4. Step 4: Simplify right side
   21,415.39x = 408,882,952.02
5. Step 5: Solve for x
   x = 408,882,952.02/21,415.39
6. Step 6: Final answer
   x = 19,092.95