Finding the Fourth Proportional to 12,861.01, 17,749.08 and 7,196.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,861.01 : 17,749.08 = 7,196.32 : x
2. Step 2: Convert to fraction form
   12,861.01/17,749.08 = 7,196.32/x
3. Step 3: Cross multiply
   12,861.01x = 17,749.08 × 7,196.32
4. Step 4: Simplify right side
   12,861.01x = 127,728,059.39
5. Step 5: Solve for x
   x = 127,728,059.39/12,861.01
6. Step 6: Final answer
   x = 9,931.42