Finding the Fourth Proportional to 162,100.16, 243,162.53 and 43,769.78

Step by Step Solution

1. Step 1: Write the proportion equation
   162,100.16 : 243,162.53 = 43,769.78 : x
2. Step 2: Convert to fraction form
   162,100.16/243,162.53 = 43,769.78/x
3. Step 3: Cross multiply
   162,100.16x = 243,162.53 × 43,769.78
4. Step 4: Simplify right side
   162,100.16x = 10,643,170,442.34
5. Step 5: Solve for x
   x = 10,643,170,442.34/162,100.16
6. Step 6: Final answer
   x = 65,657.99