Finding the Fourth Proportional to 19,136.91, 28,706.81 and 5,096.87

Step by Step Solution

1. Step 1: Write the proportion equation
   19,136.91 : 28,706.81 = 5,096.87 : x
2. Step 2: Convert to fraction form
   19,136.91/28,706.81 = 5,096.87/x
3. Step 3: Cross multiply
   19,136.91x = 28,706.81 × 5,096.87
4. Step 4: Simplify right side
   19,136.91x = 146,314,978.79
5. Step 5: Solve for x
   x = 146,314,978.79/19,136.91
6. Step 6: Final answer
   x = 7,645.70