Finding the Fourth Proportional to 16,892.06, 23,308.90 and 9,718.70

Step by Step Solution

1. Step 1: Write the proportion equation
   16,892.06 : 23,308.90 = 9,718.70 : x
2. Step 2: Convert to fraction form
   16,892.06/23,308.90 = 9,718.70/x
3. Step 3: Cross multiply
   16,892.06x = 23,308.90 × 9,718.70
4. Step 4: Simplify right side
   16,892.06x = 226,532,065.59
5. Step 5: Solve for x
   x = 226,532,065.59/16,892.06
6. Step 6: Final answer
   x = 13,410.57