Finding the Fourth Proportional to 12,005.52, 17,971.30 and 7,084.77

Step by Step Solution

1. Step 1: Write the proportion equation
   12,005.52 : 17,971.30 = 7,084.77 : x
2. Step 2: Convert to fraction form
   12,005.52/17,971.30 = 7,084.77/x
3. Step 3: Cross multiply
   12,005.52x = 17,971.30 × 7,084.77
4. Step 4: Simplify right side
   12,005.52x = 127,322,527.10
5. Step 5: Solve for x
   x = 127,322,527.10/12,005.52
6. Step 6: Final answer
   x = 10,605.33