Finding the Fourth Proportional to 23,735, 35,579.21 and 13,210.06

Step by Step Solution

1. Step 1: Write the proportion equation
   23,735 : 35,579.21 = 13,210.06 : x
2. Step 2: Convert to fraction form
   23,735/35,579.21 = 13,210.06/x
3. Step 3: Cross multiply
   23,735x = 35,579.21 × 13,210.06
4. Step 4: Simplify right side
   23,735x = 470,003,498.85
5. Step 5: Solve for x
   x = 470,003,498.85/23,735
6. Step 6: Final answer
   x = 19,802.13