Finding the Fourth Proportional to 19,999.27, 27,651.57 and 19,683.51

Step by Step Solution

1. Step 1: Write the proportion equation
   19,999.27 : 27,651.57 = 19,683.51 : x
2. Step 2: Convert to fraction form
   19,999.27/27,651.57 = 19,683.51/x
3. Step 3: Cross multiply
   19,999.27x = 27,651.57 × 19,683.51
4. Step 4: Simplify right side
   19,999.27x = 544,279,954.61
5. Step 5: Solve for x
   x = 544,279,954.61/19,999.27
6. Step 6: Final answer
   x = 27,214.99