Finding the Fourth Proportional to 91,270.69, 136,919.01 and 28,096.08

Step by Step Solution

1. Step 1: Write the proportion equation
   91,270.69 : 136,919.01 = 28,096.08 : x
2. Step 2: Convert to fraction form
   91,270.69/136,919.01 = 28,096.08/x
3. Step 3: Cross multiply
   91,270.69x = 136,919.01 × 28,096.08
4. Step 4: Simplify right side
   91,270.69x = 3,846,886,839.67
5. Step 5: Solve for x
   x = 3,846,886,839.67/91,270.69
6. Step 6: Final answer
   x = 42,148.11