Finding the Fourth Proportional to 21,410, 29,564.04 and 13,465.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,410 : 29,564.04 = 13,465.52 : x
2. Step 2: Convert to fraction form
   21,410/29,564.04 = 13,465.52/x
3. Step 3: Cross multiply
   21,410x = 29,564.04 × 13,465.52
4. Step 4: Simplify right side
   21,410x = 398,095,171.90
5. Step 5: Solve for x
   x = 398,095,171.90/21,410
6. Step 6: Final answer
   x = 18,593.89