Finding the Fourth Proportional to 23,035, 31,788.30 and 13,603.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,035 : 31,788.30 = 13,603.72 : x
2. Step 2: Convert to fraction form
   23,035/31,788.30 = 13,603.72/x
3. Step 3: Cross multiply
   23,035x = 31,788.30 × 13,603.72
4. Step 4: Simplify right side
   23,035x = 432,439,132.48
5. Step 5: Solve for x
   x = 432,439,132.48/23,035
6. Step 6: Final answer
   x = 18,773.13