Finding the Fourth Proportional to 16,174.21, 22,320.37 and 9,100.63

Step by Step Solution

1. Step 1: Write the proportion equation
   16,174.21 : 22,320.37 = 9,100.63 : x
2. Step 2: Convert to fraction form
   16,174.21/22,320.37 = 9,100.63/x
3. Step 3: Cross multiply
   16,174.21x = 22,320.37 × 9,100.63
4. Step 4: Simplify right side
   16,174.21x = 203,129,428.83
5. Step 5: Solve for x
   x = 203,129,428.83/16,174.21
6. Step 6: Final answer
   x = 12,558.85