Finding the Fourth Proportional to 108,720.46, 150,035.76 and 65,693.98

Step by Step Solution

1. Step 1: Write the proportion equation
   108,720.46 : 150,035.76 = 65,693.98 : x
2. Step 2: Convert to fraction form
   108,720.46/150,035.76 = 65,693.98/x
3. Step 3: Cross multiply
   108,720.46x = 150,035.76 × 65,693.98
4. Step 4: Simplify right side
   108,720.46x = 9,856,446,216.72
5. Step 5: Solve for x
   x = 9,856,446,216.72/108,720.46
6. Step 6: Final answer
   x = 90,658.61