Finding the Fourth Proportional to 21,773.36, 30,050.00 and 12,821.69

Step by Step Solution

1. Step 1: Write the proportion equation
   21,773.36 : 30,050.00 = 12,821.69 : x
2. Step 2: Convert to fraction form
   21,773.36/30,050.00 = 12,821.69/x
3. Step 3: Cross multiply
   21,773.36x = 30,050.00 × 12,821.69
4. Step 4: Simplify right side
   21,773.36x = 385,291,915.72
5. Step 5: Solve for x
   x = 385,291,915.72/21,773.36
6. Step 6: Final answer
   x = 17,695.57