Finding the Fourth Proportional to 134,141.69, 185,062.50 and 86,422.88

Step by Step Solution

1. Step 1: Write the proportion equation
   134,141.69 : 185,062.50 = 86,422.88 : x
2. Step 2: Convert to fraction form
   134,141.69/185,062.50 = 86,422.88/x
3. Step 3: Cross multiply
   134,141.69x = 185,062.50 × 86,422.88
4. Step 4: Simplify right side
   134,141.69x = 15,993,633,304.69
5. Step 5: Solve for x
   x = 15,993,633,304.69/134,141.69
6. Step 6: Final answer
   x = 119,229.41