Finding the Fourth Proportional to 91,269.86, 136,917.94 and 28,095.38

Step by Step Solution

1. Step 1: Write the proportion equation
   91,269.86 : 136,917.94 = 28,095.38 : x
2. Step 2: Convert to fraction form
   91,269.86/136,917.94 = 28,095.38/x
3. Step 3: Cross multiply
   91,269.86x = 136,917.94 × 28,095.38
4. Step 4: Simplify right side
   91,269.86x = 3,846,761,553.12
5. Step 5: Solve for x
   x = 3,846,761,553.12/91,269.86
6. Step 6: Final answer
   x = 42,147.12