Finding the Fourth Proportional to 120,185.90, 165,849.81 and 65,727.32

Step by Step Solution

1. Step 1: Write the proportion equation
   120,185.90 : 165,849.81 = 65,727.32 : x
2. Step 2: Convert to fraction form
   120,185.90/165,849.81 = 65,727.32/x
3. Step 3: Cross multiply
   120,185.90x = 165,849.81 × 65,727.32
4. Step 4: Simplify right side
   120,185.90x = 10,900,863,533.81
5. Step 5: Solve for x
   x = 10,900,863,533.81/120,185.90
6. Step 6: Final answer
   x = 90,700.02