Finding the Fourth Proportional to 144,352.15, 216,105.99 and 84,196.69

Step by Step Solution

1. Step 1: Write the proportion equation
   144,352.15 : 216,105.99 = 84,196.69 : x
2. Step 2: Convert to fraction form
   144,352.15/216,105.99 = 84,196.69/x
3. Step 3: Cross multiply
   144,352.15x = 216,105.99 × 84,196.69
4. Step 4: Simplify right side
   144,352.15x = 18,195,409,047.17
5. Step 5: Solve for x
   x = 18,195,409,047.17/144,352.15
6. Step 6: Final answer
   x = 126,048.76