Finding the Fourth Proportional to 21,370.16, 32,061.15 and 8,896.05

Step by Step Solution

1. Step 1: Write the proportion equation
   21,370.16 : 32,061.15 = 8,896.05 : x
2. Step 2: Convert to fraction form
   21,370.16/32,061.15 = 8,896.05/x
3. Step 3: Cross multiply
   21,370.16x = 32,061.15 × 8,896.05
4. Step 4: Simplify right side
   21,370.16x = 285,217,593.46
5. Step 5: Solve for x
   x = 285,217,593.46/21,370.16
6. Step 6: Final answer
   x = 13,346.53