Finding the Fourth Proportional to 22,967.63, 31,692.88 and 12,897.17

Step by Step Solution

1. Step 1: Write the proportion equation
   22,967.63 : 31,692.88 = 12,897.17 : x
2. Step 2: Convert to fraction form
   22,967.63/31,692.88 = 12,897.17/x
3. Step 3: Cross multiply
   22,967.63x = 31,692.88 × 12,897.17
4. Step 4: Simplify right side
   22,967.63x = 408,748,461.15
5. Step 5: Solve for x
   x = 408,748,461.15/22,967.63
6. Step 6: Final answer
   x = 17,796.72