Finding the Fourth Proportional to 144,382.74, 216,237.69 and 140,396.82

Step by Step Solution

1. Step 1: Write the proportion equation
   144,382.74 : 216,237.69 = 140,396.82 : x
2. Step 2: Convert to fraction form
   144,382.74/216,237.69 = 140,396.82/x
3. Step 3: Cross multiply
   144,382.74x = 216,237.69 × 140,396.82
4. Step 4: Simplify right side
   144,382.74x = 30,359,084,040.15
5. Step 5: Solve for x
   x = 30,359,084,040.15/144,382.74
6. Step 6: Final answer
   x = 210,268.10