Finding the Fourth Proportional to 22,404.48, 30,925.80 and 12,976.08

Step by Step Solution

1. Step 1: Write the proportion equation
   22,404.48 : 30,925.80 = 12,976.08 : x
2. Step 2: Convert to fraction form
   22,404.48/30,925.80 = 12,976.08/x
3. Step 3: Cross multiply
   22,404.48x = 30,925.80 × 12,976.08
4. Step 4: Simplify right side
   22,404.48x = 401,295,654.86
5. Step 5: Solve for x
   x = 401,295,654.86/22,404.48
6. Step 6: Final answer
   x = 17,911.40