Finding the Fourth Proportional to 13,961.28, 19,218.42 and 12,061.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,961.28 : 19,218.42 = 12,061.32 : x
2. Step 2: Convert to fraction form
   13,961.28/19,218.42 = 12,061.32/x
3. Step 3: Cross multiply
   13,961.28x = 19,218.42 × 12,061.32
4. Step 4: Simplify right side
   13,961.28x = 231,799,513.51
5. Step 5: Solve for x
   x = 231,799,513.51/13,961.28
6. Step 6: Final answer
   x = 16,603.03