Finding the Fourth Proportional to 144,870.72, 199,932.67 and 91,201.74

Step by Step Solution

1. Step 1: Write the proportion equation
   144,870.72 : 199,932.67 = 91,201.74 : x
2. Step 2: Convert to fraction form
   144,870.72/199,932.67 = 91,201.74/x
3. Step 3: Cross multiply
   144,870.72x = 199,932.67 × 91,201.74
4. Step 4: Simplify right side
   144,870.72x = 18,234,207,386.85
5. Step 5: Solve for x
   x = 18,234,207,386.85/144,870.72
6. Step 6: Final answer
   x = 125,865.37