Finding the Fourth Proportional to 23,429.09, 35,127.98 and 12,904.03

Step by Step Solution

1. Step 1: Write the proportion equation
   23,429.09 : 35,127.98 = 12,904.03 : x
2. Step 2: Convert to fraction form
   23,429.09/35,127.98 = 12,904.03/x
3. Step 3: Cross multiply
   23,429.09x = 35,127.98 × 12,904.03
4. Step 4: Simplify right side
   23,429.09x = 453,292,507.76
5. Step 5: Solve for x
   x = 453,292,507.76/23,429.09
6. Step 6: Final answer
   x = 19,347.42