Finding the Fourth Proportional to 21,054.06, 29,054.76 and 11,494.02

Step by Step Solution

1. Step 1: Write the proportion equation
   21,054.06 : 29,054.76 = 11,494.02 : x
2. Step 2: Convert to fraction form
   21,054.06/29,054.76 = 11,494.02/x
3. Step 3: Cross multiply
   21,054.06x = 29,054.76 × 11,494.02
4. Step 4: Simplify right side
   21,054.06x = 333,955,992.54
5. Step 5: Solve for x
   x = 333,955,992.54/21,054.06
6. Step 6: Final answer
   x = 15,861.83