Finding the Fourth Proportional to 137,067.92, 189,095.80 and 91,760.50

Step by Step Solution

1. Step 1: Write the proportion equation
   137,067.92 : 189,095.80 = 91,760.50 : x
2. Step 2: Convert to fraction form
   137,067.92/189,095.80 = 91,760.50/x
3. Step 3: Cross multiply
   137,067.92x = 189,095.80 × 91,760.50
4. Step 4: Simplify right side
   137,067.92x = 17,351,524,439.82
5. Step 5: Solve for x
   x = 17,351,524,439.82/137,067.92
6. Step 6: Final answer
   x = 126,590.71