Finding the Fourth Proportional to 16,298.36, 22,472 and 13,776

Step by Step Solution

1. Step 1: Write the proportion equation
   16,298.36 : 22,472 = 13,776 : x
2. Step 2: Convert to fraction form
   16,298.36/22,472 = 13,776/x
3. Step 3: Cross multiply
   16,298.36x = 22,472 × 13,776
4. Step 4: Simplify right side
   16,298.36x = 309,574,272
5. Step 5: Solve for x
   x = 309,574,272/16,298.36
6. Step 6: Final answer
   x = 18,994.20