Finding the Fourth Proportional to 12,142.32, 18,208.69 and 5,900.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,142.32 : 18,208.69 = 5,900.49 : x
2. Step 2: Convert to fraction form
   12,142.32/18,208.69 = 5,900.49/x
3. Step 3: Cross multiply
   12,142.32x = 18,208.69 × 5,900.49
4. Step 4: Simplify right side
   12,142.32x = 107,440,102.21
5. Step 5: Solve for x
   x = 107,440,102.21/12,142.32
6. Step 6: Final answer
   x = 8,848.40