Finding the Fourth Proportional to 21,496.86, 32,250.69 and 8,345.70

Step by Step Solution

1. Step 1: Write the proportion equation
   21,496.86 : 32,250.69 = 8,345.70 : x
2. Step 2: Convert to fraction form
   21,496.86/32,250.69 = 8,345.70/x
3. Step 3: Cross multiply
   21,496.86x = 32,250.69 × 8,345.70
4. Step 4: Simplify right side
   21,496.86x = 269,154,583.53
5. Step 5: Solve for x
   x = 269,154,583.53/21,496.86
6. Step 6: Final answer
   x = 12,520.65