Finding the Fourth Proportional to 12,827.60, 17,692.68 and 9,296.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,827.60 : 17,692.68 = 9,296.72 : x
2. Step 2: Convert to fraction form
   12,827.60/17,692.68 = 9,296.72/x
3. Step 3: Cross multiply
   12,827.60x = 17,692.68 × 9,296.72
4. Step 4: Simplify right side
   12,827.60x = 164,483,892.01
5. Step 5: Solve for x
   x = 164,483,892.01/12,827.60
6. Step 6: Final answer
   x = 12,822.66