Finding the Fourth Proportional to 21,056.50, 29,056.94 and 12,101.94

Step by Step Solution

1. Step 1: Write the proportion equation
   21,056.50 : 29,056.94 = 12,101.94 : x
2. Step 2: Convert to fraction form
   21,056.50/29,056.94 = 12,101.94/x
3. Step 3: Cross multiply
   21,056.50x = 29,056.94 × 12,101.94
4. Step 4: Simplify right side
   21,056.50x = 351,645,344.46
5. Step 5: Solve for x
   x = 351,645,344.46/21,056.50
6. Step 6: Final answer
   x = 16,700.09