Finding the Fourth Proportional to 22,385.17, 30,879.52 and 13,426.84

Step by Step Solution

1. Step 1: Write the proportion equation
   22,385.17 : 30,879.52 = 13,426.84 : x
2. Step 2: Convert to fraction form
   22,385.17/30,879.52 = 13,426.84/x
3. Step 3: Cross multiply
   22,385.17x = 30,879.52 × 13,426.84
4. Step 4: Simplify right side
   22,385.17x = 414,614,374.32
5. Step 5: Solve for x
   x = 414,614,374.32/22,385.17
6. Step 6: Final answer
   x = 18,521.83