Finding the Fourth Proportional to 159,665.04, 220,337.69 and 91,686.47

Step by Step Solution

1. Step 1: Write the proportion equation
   159,665.04 : 220,337.69 = 91,686.47 : x
2. Step 2: Convert to fraction form
   159,665.04/220,337.69 = 91,686.47/x
3. Step 3: Cross multiply
   159,665.04x = 220,337.69 × 91,686.47
4. Step 4: Simplify right side
   159,665.04x = 20,201,983,443.93
5. Step 5: Solve for x
   x = 20,201,983,443.93/159,665.04
6. Step 6: Final answer
   x = 126,527.28