Finding the Fourth Proportional to 162,113.50, 243,171.33 and 51,305.50

Step by Step Solution

1. Step 1: Write the proportion equation
   162,113.50 : 243,171.33 = 51,305.50 : x
2. Step 2: Convert to fraction form
   162,113.50/243,171.33 = 51,305.50/x
3. Step 3: Cross multiply
   162,113.50x = 243,171.33 × 51,305.50
4. Step 4: Simplify right side
   162,113.50x = 12,476,026,671.32
5. Step 5: Solve for x
   x = 12,476,026,671.32/162,113.50
6. Step 6: Final answer
   x = 76,958.59