Finding the Fourth Proportional to 22,210.17, 30,648.27 and 12,779.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,210.17 : 30,648.27 = 12,779.34 : x
2. Step 2: Convert to fraction form
   22,210.17/30,648.27 = 12,779.34/x
3. Step 3: Cross multiply
   22,210.17x = 30,648.27 × 12,779.34
4. Step 4: Simplify right side
   22,210.17x = 391,664,662.74
5. Step 5: Solve for x
   x = 391,664,662.74/22,210.17
6. Step 6: Final answer
   x = 17,634.47