Finding the Fourth Proportional to 14,112.59, 21,161.39 and 4,749.48

Step by Step Solution

1. Step 1: Write the proportion equation
   14,112.59 : 21,161.39 = 4,749.48 : x
2. Step 2: Convert to fraction form
   14,112.59/21,161.39 = 4,749.48/x
3. Step 3: Cross multiply
   14,112.59x = 21,161.39 × 4,749.48
4. Step 4: Simplify right side
   14,112.59x = 100,505,574.83
5. Step 5: Solve for x
   x = 100,505,574.83/14,112.59
6. Step 6: Final answer
   x = 7,121.70