Finding the Fourth Proportional to 22,456.62, 30,991.50 and 12,385.02

Step by Step Solution

1. Step 1: Write the proportion equation
   22,456.62 : 30,991.50 = 12,385.02 : x
2. Step 2: Convert to fraction form
   22,456.62/30,991.50 = 12,385.02/x
3. Step 3: Cross multiply
   22,456.62x = 30,991.50 × 12,385.02
4. Step 4: Simplify right side
   22,456.62x = 383,830,347.33
5. Step 5: Solve for x
   x = 383,830,347.33/22,456.62
6. Step 6: Final answer
   x = 17,092.08