Finding the Fourth Proportional to 14,189.43, 19,581.87 and 7,816.69

Step by Step Solution

1. Step 1: Write the proportion equation
   14,189.43 : 19,581.87 = 7,816.69 : x
2. Step 2: Convert to fraction form
   14,189.43/19,581.87 = 7,816.69/x
3. Step 3: Cross multiply
   14,189.43x = 19,581.87 × 7,816.69
4. Step 4: Simplify right side
   14,189.43x = 153,065,407.41
5. Step 5: Solve for x
   x = 153,065,407.41/14,189.43
6. Step 6: Final answer
   x = 10,787.28