Finding the Fourth Proportional to 16,420.02, 22,603.77 and 12,434.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,420.02 : 22,603.77 = 12,434.82 : x
2. Step 2: Convert to fraction form
   16,420.02/22,603.77 = 12,434.82/x
3. Step 3: Cross multiply
   16,420.02x = 22,603.77 × 12,434.82
4. Step 4: Simplify right side
   16,420.02x = 281,073,811.27
5. Step 5: Solve for x
   x = 281,073,811.27/16,420.02
6. Step 6: Final answer
   x = 17,117.75