Finding the Fourth Proportional to 117,745.12, 162,489.02 and 64,030.72

Step by Step Solution

1. Step 1: Write the proportion equation
   117,745.12 : 162,489.02 = 64,030.72 : x
2. Step 2: Convert to fraction form
   117,745.12/162,489.02 = 64,030.72/x
3. Step 3: Cross multiply
   117,745.12x = 162,489.02 × 64,030.72
4. Step 4: Simplify right side
   117,745.12x = 10,404,288,942.69
5. Step 5: Solve for x
   x = 10,404,288,942.69/117,745.12
6. Step 6: Final answer
   x = 88,362.80