Finding the Fourth Proportional to 19,117, 28,624.06 and 10,784.53

Step by Step Solution

1. Step 1: Write the proportion equation
   19,117 : 28,624.06 = 10,784.53 : x
2. Step 2: Convert to fraction form
   19,117/28,624.06 = 10,784.53/x
3. Step 3: Cross multiply
   19,117x = 28,624.06 × 10,784.53
4. Step 4: Simplify right side
   19,117x = 308,697,033.79
5. Step 5: Solve for x
   x = 308,697,033.79/19,117
6. Step 6: Final answer
   x = 16,147.78