Finding the Fourth Proportional to 16,710.09, 23,059.05 and 9,539.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,710.09 : 23,059.05 = 9,539.72 : x
2. Step 2: Convert to fraction form
   16,710.09/23,059.05 = 9,539.72/x
3. Step 3: Cross multiply
   16,710.09x = 23,059.05 × 9,539.72
4. Step 4: Simplify right side
   16,710.09x = 219,976,832.77
5. Step 5: Solve for x
   x = 219,976,832.77/16,710.09
6. Step 6: Final answer
   x = 13,164.31