Finding the Fourth Proportional to 22,335.39, 30,823.32 and 12,776.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,335.39 : 30,823.32 = 12,776.15 : x
2. Step 2: Convert to fraction form
   22,335.39/30,823.32 = 12,776.15/x
3. Step 3: Cross multiply
   22,335.39x = 30,823.32 × 12,776.15
4. Step 4: Simplify right side
   22,335.39x = 393,803,359.82
5. Step 5: Solve for x
   x = 393,803,359.82/22,335.39
6. Step 6: Final answer
   x = 17,631.36