Finding the Fourth Proportional to 12,449.36, 18,680.88 and 5,875.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,449.36 : 18,680.88 = 5,875.37 : x
2. Step 2: Convert to fraction form
   12,449.36/18,680.88 = 5,875.37/x
3. Step 3: Cross multiply
   12,449.36x = 18,680.88 × 5,875.37
4. Step 4: Simplify right side
   12,449.36x = 109,757,128.63
5. Step 5: Solve for x
   x = 109,757,128.63/12,449.36
6. Step 6: Final answer
   x = 8,816.29