Finding the Fourth Proportional to 144,019.33, 215,965.98 and 76,536.68

Step by Step Solution

1. Step 1: Write the proportion equation
   144,019.33 : 215,965.98 = 76,536.68 : x
2. Step 2: Convert to fraction form
   144,019.33/215,965.98 = 76,536.68/x
3. Step 3: Cross multiply
   144,019.33x = 215,965.98 × 76,536.68
4. Step 4: Simplify right side
   144,019.33x = 16,529,318,022.32
5. Step 5: Solve for x
   x = 16,529,318,022.32/144,019.33
6. Step 6: Final answer
   x = 114,771.53