Finding the Fourth Proportional to 162,456.05, 243,580.37 and 78,048.29

Step by Step Solution

1. Step 1: Write the proportion equation
   162,456.05 : 243,580.37 = 78,048.29 : x
2. Step 2: Convert to fraction form
   162,456.05/243,580.37 = 78,048.29/x
3. Step 3: Cross multiply
   162,456.05x = 243,580.37 × 78,048.29
4. Step 4: Simplify right side
   162,456.05x = 19,011,029,747.92
5. Step 5: Solve for x
   x = 19,011,029,747.92/162,456.05
6. Step 6: Final answer
   x = 117,022.61