Finding the Fourth Proportional to 21,389.15, 32,061.04 and 8,235.83

Step by Step Solution

1. Step 1: Write the proportion equation
   21,389.15 : 32,061.04 = 8,235.83 : x
2. Step 2: Convert to fraction form
   21,389.15/32,061.04 = 8,235.83/x
3. Step 3: Cross multiply
   21,389.15x = 32,061.04 × 8,235.83
4. Step 4: Simplify right side
   21,389.15x = 264,049,275.06
5. Step 5: Solve for x
   x = 264,049,275.06/21,389.15
6. Step 6: Final answer
   x = 12,345.01