Finding the Fourth Proportional to 23,030.99, 31,786.63 and 13,339.02

Step by Step Solution

1. Step 1: Write the proportion equation
   23,030.99 : 31,786.63 = 13,339.02 : x
2. Step 2: Convert to fraction form
   23,030.99/31,786.63 = 13,339.02/x
3. Step 3: Cross multiply
   23,030.99x = 31,786.63 × 13,339.02
4. Step 4: Simplify right side
   23,030.99x = 424,002,459.96
5. Step 5: Solve for x
   x = 424,002,459.96/23,030.99
6. Step 6: Final answer
   x = 18,410.09