Finding the Fourth Proportional to 12,238.16, 16,898.93 and 9,208.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,238.16 : 16,898.93 = 9,208.01 : x
2. Step 2: Convert to fraction form
   12,238.16/16,898.93 = 9,208.01/x
3. Step 3: Cross multiply
   12,238.16x = 16,898.93 × 9,208.01
4. Step 4: Simplify right side
   12,238.16x = 155,605,385.89
5. Step 5: Solve for x
   x = 155,605,385.89/12,238.16
6. Step 6: Final answer
   x = 12,714.77