Finding the Fourth Proportional to 144,404.71, 216,713.49 and 68,503.48

Step by Step Solution

1. Step 1: Write the proportion equation
   144,404.71 : 216,713.49 = 68,503.48 : x
2. Step 2: Convert to fraction form
   144,404.71/216,713.49 = 68,503.48/x
3. Step 3: Cross multiply
   144,404.71x = 216,713.49 × 68,503.48
4. Step 4: Simplify right side
   144,404.71x = 14,845,629,482.87
5. Step 5: Solve for x
   x = 14,845,629,482.87/144,404.71
6. Step 6: Final answer
   x = 102,805.72