Finding the Fourth Proportional to 144,009.82, 215,995.76 and 42,805.71

Step by Step Solution

1. Step 1: Write the proportion equation
   144,009.82 : 215,995.76 = 42,805.71 : x
2. Step 2: Convert to fraction form
   144,009.82/215,995.76 = 42,805.71/x
3. Step 3: Cross multiply
   144,009.82x = 215,995.76 × 42,805.71
4. Step 4: Simplify right side
   144,009.82x = 9,245,850,569.78
5. Step 5: Solve for x
   x = 9,245,850,569.78/144,009.82
6. Step 6: Final answer
   x = 64,202.92