Finding the Fourth Proportional to 162,100.88, 243,163.20 and 43,769.60

Step by Step Solution

1. Step 1: Write the proportion equation
   162,100.88 : 243,163.20 = 43,769.60 : x
2. Step 2: Convert to fraction form
   162,100.88/243,163.20 = 43,769.60/x
3. Step 3: Cross multiply
   162,100.88x = 243,163.20 × 43,769.60
4. Step 4: Simplify right side
   162,100.88x = 10,643,155,998.72
5. Step 5: Solve for x
   x = 10,643,155,998.72/162,100.88
6. Step 6: Final answer
   x = 65,657.61