Finding the Fourth Proportional to 117,431.56, 162,069.42 and 65,753.56

Step by Step Solution

1. Step 1: Write the proportion equation
   117,431.56 : 162,069.42 = 65,753.56 : x
2. Step 2: Convert to fraction form
   117,431.56/162,069.42 = 65,753.56/x
3. Step 3: Cross multiply
   117,431.56x = 162,069.42 × 65,753.56
4. Step 4: Simplify right side
   117,431.56x = 10,656,641,332.14
5. Step 5: Solve for x
   x = 10,656,641,332.14/117,431.56
6. Step 6: Final answer
   x = 90,747.68