Finding the Fourth Proportional to 105,267.42, 145,422.71 and 91,095.66

Step by Step Solution

1. Step 1: Write the proportion equation
   105,267.42 : 145,422.71 = 91,095.66 : x
2. Step 2: Convert to fraction form
   105,267.42/145,422.71 = 91,095.66/x
3. Step 3: Cross multiply
   105,267.42x = 145,422.71 × 91,095.66
4. Step 4: Simplify right side
   105,267.42x = 13,247,377,290.96
5. Step 5: Solve for x
   x = 13,247,377,290.96/105,267.42
6. Step 6: Final answer
   x = 125,844.99