Finding the Fourth Proportional to 21,499.09, 29,693.93 and 19,607.33

Step by Step Solution

1. Step 1: Write the proportion equation
   21,499.09 : 29,693.93 = 19,607.33 : x
2. Step 2: Convert to fraction form
   21,499.09/29,693.93 = 19,607.33/x
3. Step 3: Cross multiply
   21,499.09x = 29,693.93 × 19,607.33
4. Step 4: Simplify right side
   21,499.09x = 582,218,660.71
5. Step 5: Solve for x
   x = 582,218,660.71/21,499.09
6. Step 6: Final answer
   x = 27,081.09