Finding the Fourth Proportional to 12,327.02, 16,991.28 and 9,633.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,327.02 : 16,991.28 = 9,633.50 : x
2. Step 2: Convert to fraction form
   12,327.02/16,991.28 = 9,633.50/x
3. Step 3: Cross multiply
   12,327.02x = 16,991.28 × 9,633.50
4. Step 4: Simplify right side
   12,327.02x = 163,685,495.88
5. Step 5: Solve for x
   x = 163,685,495.88/12,327.02
6. Step 6: Final answer
   x = 13,278.59