Finding the Fourth Proportional to 22,692.16, 31,314.88 and 12,756.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,692.16 : 31,314.88 = 12,756.16 : x
2. Step 2: Convert to fraction form
   22,692.16/31,314.88 = 12,756.16/x
3. Step 3: Cross multiply
   22,692.16x = 31,314.88 × 12,756.16
4. Step 4: Simplify right side
   22,692.16x = 399,457,619.66
5. Step 5: Solve for x
   x = 399,457,619.66/22,692.16
6. Step 6: Final answer
   x = 17,603.33