Finding the Fourth Proportional to 21,773.25, 30,047.10 and 12,342.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,773.25 : 30,047.10 = 12,342.42 : x
2. Step 2: Convert to fraction form
   21,773.25/30,047.10 = 12,342.42/x
3. Step 3: Cross multiply
   21,773.25x = 30,047.10 × 12,342.42
4. Step 4: Simplify right side
   21,773.25x = 370,853,927.98
5. Step 5: Solve for x
   x = 370,853,927.98/21,773.25
6. Step 6: Final answer
   x = 17,032.55