Finding the Fourth Proportional to 16,820.72, 23,209.08 and 9,746.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,820.72 : 23,209.08 = 9,746.72 : x
2. Step 2: Convert to fraction form
   16,820.72/23,209.08 = 9,746.72/x
3. Step 3: Cross multiply
   16,820.72x = 23,209.08 × 9,746.72
4. Step 4: Simplify right side
   16,820.72x = 226,212,404.22
5. Step 5: Solve for x
   x = 226,212,404.22/16,820.72
6. Step 6: Final answer
   x = 13,448.44