Finding the Fourth Proportional to 16,119.93, 22,264.31 and 12,900.93

Step by Step Solution

1. Step 1: Write the proportion equation
   16,119.93 : 22,264.31 = 12,900.93 : x
2. Step 2: Convert to fraction form
   16,119.93/22,264.31 = 12,900.93/x
3. Step 3: Cross multiply
   16,119.93x = 22,264.31 × 12,900.93
4. Step 4: Simplify right side
   16,119.93x = 287,230,304.81
5. Step 5: Solve for x
   x = 287,230,304.81/16,119.93
6. Step 6: Final answer
   x = 17,818.33