Finding the Fourth Proportional to 162,648, 243,976.32 and 51,840

Step by Step Solution

1. Step 1: Write the proportion equation
   162,648 : 243,976.32 = 51,840 : x
2. Step 2: Convert to fraction form
   162,648/243,976.32 = 51,840/x
3. Step 3: Cross multiply
   162,648x = 243,976.32 × 51,840
4. Step 4: Simplify right side
   162,648x = 12,647,732,428.80
5. Step 5: Solve for x
   x = 12,647,732,428.80/162,648
6. Step 6: Final answer
   x = 77,761.38