Finding the Fourth Proportional to 12,753.12, 17,600.72 and 7,164

Step by Step Solution

1. Step 1: Write the proportion equation
   12,753.12 : 17,600.72 = 7,164 : x
2. Step 2: Convert to fraction form
   12,753.12/17,600.72 = 7,164/x
3. Step 3: Cross multiply
   12,753.12x = 17,600.72 × 7,164
4. Step 4: Simplify right side
   12,753.12x = 126,091,558.08
5. Step 5: Solve for x
   x = 126,091,558.08/12,753.12
6. Step 6: Final answer
   x = 9,887.11