Finding the Fourth Proportional to 12,354.37, 18,521.16 and 10,008.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,354.37 : 18,521.16 = 10,008.56 : x
2. Step 2: Convert to fraction form
   12,354.37/18,521.16 = 10,008.56/x
3. Step 3: Cross multiply
   12,354.37x = 18,521.16 × 10,008.56
4. Step 4: Simplify right side
   12,354.37x = 185,370,141.13
5. Step 5: Solve for x
   x = 185,370,141.13/12,354.37
6. Step 6: Final answer
   x = 15,004.42