Finding the Fourth Proportional to 22,513.69, 31,069 and 12,304.92

Step by Step Solution

1. Step 1: Write the proportion equation
   22,513.69 : 31,069 = 12,304.92 : x
2. Step 2: Convert to fraction form
   22,513.69/31,069 = 12,304.92/x
3. Step 3: Cross multiply
   22,513.69x = 31,069 × 12,304.92
4. Step 4: Simplify right side
   22,513.69x = 382,301,559.48
5. Step 5: Solve for x
   x = 382,301,559.48/22,513.69
6. Step 6: Final answer
   x = 16,980.85