Finding the Fourth Proportional to 162,136.50, 243,205.83 and 51,328.50

Step by Step Solution

1. Step 1: Write the proportion equation
   162,136.50 : 243,205.83 = 51,328.50 : x
2. Step 2: Convert to fraction form
   162,136.50/243,205.83 = 51,328.50/x
3. Step 3: Cross multiply
   162,136.50x = 243,205.83 × 51,328.50
4. Step 4: Simplify right side
   162,136.50x = 12,483,390,445.16
5. Step 5: Solve for x
   x = 12,483,390,445.16/162,136.50
6. Step 6: Final answer
   x = 76,993.09