Finding the Fourth Proportional to 21,607.25, 29,818.01 and 12,176.15

Step by Step Solution

1. Step 1: Write the proportion equation
   21,607.25 : 29,818.01 = 12,176.15 : x
2. Step 2: Convert to fraction form
   21,607.25/29,818.01 = 12,176.15/x
3. Step 3: Cross multiply
   21,607.25x = 29,818.01 × 12,176.15
4. Step 4: Simplify right side
   21,607.25x = 363,068,501.58
5. Step 5: Solve for x
   x = 363,068,501.58/21,607.25
6. Step 6: Final answer
   x = 16,803.09