Finding the Fourth Proportional to 16,346.72, 22,557.80 and 9,272.99

Step by Step Solution

1. Step 1: Write the proportion equation
   16,346.72 : 22,557.80 = 9,272.99 : x
2. Step 2: Convert to fraction form
   16,346.72/22,557.80 = 9,272.99/x
3. Step 3: Cross multiply
   16,346.72x = 22,557.80 × 9,272.99
4. Step 4: Simplify right side
   16,346.72x = 209,178,253.82
5. Step 5: Solve for x
   x = 209,178,253.82/16,346.72
6. Step 6: Final answer
   x = 12,796.34