Finding the Fourth Proportional to 21,525.86, 29,706.27 and 12,095.30

Step by Step Solution

1. Step 1: Write the proportion equation
   21,525.86 : 29,706.27 = 12,095.30 : x
2. Step 2: Convert to fraction form
   21,525.86/29,706.27 = 12,095.30/x
3. Step 3: Cross multiply
   21,525.86x = 29,706.27 × 12,095.30
4. Step 4: Simplify right side
   21,525.86x = 359,306,247.53
5. Step 5: Solve for x
   x = 359,306,247.53/21,525.86
6. Step 6: Final answer
   x = 16,691.84