Finding the Fourth Proportional to 23,423.51, 35,078.96 and 13,397.87

Step by Step Solution

1. Step 1: Write the proportion equation
   23,423.51 : 35,078.96 = 13,397.87 : x
2. Step 2: Convert to fraction form
   23,423.51/35,078.96 = 13,397.87/x
3. Step 3: Cross multiply
   23,423.51x = 35,078.96 × 13,397.87
4. Step 4: Simplify right side
   23,423.51x = 469,983,345.82
5. Step 5: Solve for x
   x = 469,983,345.82/23,423.51
6. Step 6: Final answer
   x = 20,064.60