Finding the Fourth Proportional to 14,242.37, 19,655.46 and 7,869.15

Step by Step Solution

1. Step 1: Write the proportion equation
   14,242.37 : 19,655.46 = 7,869.15 : x
2. Step 2: Convert to fraction form
   14,242.37/19,655.46 = 7,869.15/x
3. Step 3: Cross multiply
   14,242.37x = 19,655.46 × 7,869.15
4. Step 4: Simplify right side
   14,242.37x = 154,671,763.06
5. Step 5: Solve for x
   x = 154,671,763.06/14,242.37
6. Step 6: Final answer
   x = 10,859.98