Finding the Fourth Proportional to 162,870.76, 244,150.62 and 51,990.76

Step by Step Solution

1. Step 1: Write the proportion equation
   162,870.76 : 244,150.62 = 51,990.76 : x
2. Step 2: Convert to fraction form
   162,870.76/244,150.62 = 51,990.76/x
3. Step 3: Cross multiply
   162,870.76x = 244,150.62 × 51,990.76
4. Step 4: Simplify right side
   162,870.76x = 12,693,576,288.27
5. Step 5: Solve for x
   x = 12,693,576,288.27/162,870.76
6. Step 6: Final answer
   x = 77,936.50