Finding the Fourth Proportional to 22,776.18, 34,209.30 and 13,788.47

Step by Step Solution

1. Step 1: Write the proportion equation
   22,776.18 : 34,209.30 = 13,788.47 : x
2. Step 2: Convert to fraction form
   22,776.18/34,209.30 = 13,788.47/x
3. Step 3: Cross multiply
   22,776.18x = 34,209.30 × 13,788.47
4. Step 4: Simplify right side
   22,776.18x = 471,693,735.72
5. Step 5: Solve for x
   x = 471,693,735.72/22,776.18
6. Step 6: Final answer
   x = 20,709.96